Summary
Aluminum Alloy Wheel is made by the aluminum alloy. The aluminum alloy wheel usually has better heat conduction and the weight is also lighter than the steel wheel. The aluminum alloy has relative smaller strength than the steel wheel, so it is applied in the passenger vehicle more than commercial vehicle.The forged aluminum wheels are manufactured by the forging method.
The global Forged Aluminum Wheels market will reach xxx Million USD in 2021 with CAGR xx% 2021-2026. The objective of report is to define, segment, and project the market on the basis of product type, application, and region, and to describe the content about the factors influencing market dynamics, policy, economic, technology and market entry etc.
Based on products type, the report describes major products type share of regional market. Products mentioned as follows:
<15 inch
15-17 inch
>18 inch
Leading vendors in the market are included based on profile, business performance etc. Vendors mentioned as follows:
Enkei Wheels
Ronal Wheels
Superior Industries
Alcoa
Iochpe-Maxion
Uniwheel Group
Accuride
YHI
Topy Group
CITIC Dicastal
Lizhong Group
Wanfeng Auto
Kunshan Liufeng
Zhejiang Jinfei
Yueling Wheels
Zhongnan Aluminum Wheels
Anchi Aluminum Wheel
Guangdong Dcenti Auto-Parts
Based on Application, the report describes major application share of regional market. Application mentioned as follows:
Passenger Vehicle
Commercial Vehicle
Based on region, the report describes major regions market by products and application. Regions mentioned as follows:
Asia-Pacific
North America
Europe
South America
Middle East & Africa
Table of Contents
1 Market Overview
1.1 Objectives of Research
1.1.1 Definition
Figure Forged Aluminum Wheels Picture
1.1.2 Specifications
Table Product Specifications of Forged Aluminum Wheels
1.2 Market Segment
1.2.1 by Type
Table Products Segment of Forged Aluminum Wheels
Table Global Forged Aluminum Wheels Market by Type, 2016-2026 (USD Million)
1.2.1.1 <15 inch
Table <15 inch Overview
1.2.1.2 15-17 inch
Table 15-17 inch Overview
1.2.1.3 >18 inch
Table >18 inch Overview
1.2.2 by Application
Table Application Segment of Forged Aluminum Wheels
Table Global Forged Aluminum Wheels Market by Application, 2016-2026 (USD Million)
1.2.2.1 Passenger Vehicle
Table Passenger Vehicle Overview
1.2.2.2 Commercial Vehicle
Table Commercial Vehicle Overview
1.2.3 by Regions
Table Global Forged Aluminum Wheels Market by Region, 2016-2026 (USD Million)
2 Industry Chain
2.1 Industry Chain Structure
Figure Industry Chain Structure of Forged Aluminum Wheels
2.2 Upstream
Table Cost of Forged Aluminum Wheels
Figure Manufacturing Process of Forged Aluminum Wheels
2.3 Market
2.3.1 SWOT
Figure SWOT of Forged Aluminum Wheels
2.3.2 Dynamics
Table Market Dynamics
3 Environmental Analysis
3.1 Policy
Table Policy of Forged Aluminum Wheels
3.2 Economic
Table GDP of Major Countries
3.3 Technology
Table Technology of Forged Aluminum Wheels
3.4 Market Entry
Table Market Entry of Forged Aluminum Wheels
4 Market Segmentation by Type
4.1 Market Size
4.1.1 <15 inch Market, 2016-2020
Figure <15 inch Market Size and Growth, 2016-2020 (USD Million)
Figure <15 inch Market Size and Growth, 2016-2020 (in Volume)
Table <15 inch CAGR by Revenue and Volume, 2016-2020
4.1.2 15-17 inch Market, 2016-2020
Figure 15-17 inch Market Size and Growth, 2016-2020 (USD Million)
Figure 15-17 inch Market Size and Growth, 2016-2020 (in Volume)
Table 15-17 inch CAGR by Revenue and Volume, 2016-2020
4.1.3 >18 inch Market, 2016-2020
Figure >18 inch Market Size and Growth, 2016-2020 (USD Million)
Figure >18 inch Market Size and Growth, 2016-2020 (in Volume)
Table >18 inch CAGR by Revenue and Volume, 2016-2020
4.2 Market Forecast
4.2.1 <15 inch Market Forecast, 2021-2026
Figure <15 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure <15 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Table <15 inch CAGR by Revenue and Volume, 2016-2026
4.2.2 15-17 inch Market Forecast, 2021-2026
Figure 15-17 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure 15-17 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Table 15-17 inch CAGR by Revenue and Volume, 2016-2026
4.2.3 >18 inch Market Forecast, 2021-2026
Figure >18 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure >18 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Table >18 inch CAGR by Revenue and Volume, 2016-2026
5 Market Segmentation by Application
5.1 Market Size
5.1.1 Passenger Vehicle Market, 2016-2020
Figure Passenger Vehicle Market Size and Growth, 2016-2020 (USD Million)
Figure Market Size and Growth, 2016-2020 (in Volume)
Table Passenger Vehicle CAGR by Revenue and Volume, 2016-2020
5.1.2 Commercial Vehicle Market, 2016-2020
Figure Commercial Vehicle Market Size and Growth, 2016-2020 (USD Million)
Figure Market Size and Growth, 2016-2020 (in Volume)
Table Commercial Vehicle CAGR by Revenue and Volume, 2016-2020
5.2 Market Forecast
5.2.1 Passenger Vehicle Market Forecast, 2021-2026
Figure Passenger Vehicle Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Passenger Vehicle Market Estimates and Forecasts, 2021-2026 (in Volume)
Table Passenger Vehicle CAGR by Revenue and Volume, 2021-2026
5.2.2 Commercial Vehicle Market Forecast, 2021-2026
Figure Commercial Vehicle Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Commercial Vehicle Market Estimates and Forecasts, 2021-2026 (in Volume)
Table Commercial Vehicle CAGR by Revenue and Volume, 2021-2026
6 Market Segmentation by Region
6.1 Market Size
6.1.1 Asia-Pacific
6.1.1.1 Asia-Pacific Market, 2016-2020
Figure Asia-Pacific Market Size and Growth, 2016-2020 (USD Million)
Figure Asia-Pacific Market Size and Growth, 2016-2020 (in Volume)
Table Asia-Pacific CAGR by Revenue and Volume, 2016-2020
6.1.1.2 Asia-Pacific Market by Type
Figure Asia-Pacific Market Size by Type
Figure Asia-Pacific Market Share by Type
6.1.1.3 Asia-Pacific Market by Application
Figure Asia-Pacific Market Size by Application
Figure Asia-Pacific Market Share by Application
6.1.2 North America
6.1.2.1 North America Market, 2016-2020
Figure North America Market Size and Growth, 2016-2020 (USD Million)
Figure North America Market Size and Growth, 2016-2020 (in Volume)
Table North America CAGR by Revenue and Volume, 2016-2020
6.1.2.2 North America Market by Type
Figure North America Market Size by Type
Figure North America Market Share by Type
6.1.2.3 North America Market by Application
Figure North America Market Size by Application
Figure North America Market Share by Application
6.1.3 Europe
6.1.3.1 Europe Market, 2016-2020
Figure Europe Market Size and Growth, 2016-2020 (USD Million)
Figure Europe Market Size and Growth, 2016-2020 (in Volume)
Table Europe CAGR by Revenue and Volume, 2016-2020
6.1.3.2 Europe Market by Type
Figure Europe Market Size by Type
Figure Europe Market Share by Type
6.1.3.3 Europe Market by Application
Figure Europe Market Size by Application
Figure Europe Market Share by Application
6.1.4 South America
6.1.4.1 South America Market, 2016-2020
Figure South America Market Size and Growth, 2016-2020 (USD Million)
Figure South America Market Size and Growth, 2016-2020 (in Volume)
Table South America CAGR by Revenue and Volume, 2016-2020
6.1.4.2 South America Market by Type
Figure South America Market Size by Type
Figure South America Market Share by Type
6.1.4.3 South America Market by Application
Figure South America Market Size by Application
Figure South America Market Share by Application
6.1.5 Middle East & Africa
6.1.5.1 Middle East & Africa Market, 2016-2020
Figure Middle East & Africa Market Size and Growth, 2016-2020 (USD Million)
Figure Middle East & Africa Market Size and Growth, 2016-2020 (in Volume)
Table Middle East & Africa CAGR by Revenue and Volume, 2016-2020
6.1.5.2 Middle East & Africa Market by Type
Figure Middle East & Africa Market Size by Type
Figure Middle East & Africa Market Share by Type
6.1.5.3 Middle East & Africa Market by Application
Figure Middle East & Africa Market Size by Application
Figure Middle East & Africa Market Share by Application
6.2 Market Forecast
6.2.1 Asia-Pacific Market Forecast, 2021-2026
Figure Asia-Pacific Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Asia-Pacific Market Estimates and Forecasts, 2021-2026 (in Volume)
Table Asia-Pacific CAGR by Revenue and Volume, 2021-2026
6.2.2 North America Market Forecast, 2021-2026
Figure North America Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure North America Market Estimates and Forecasts, 2021-2026 (in Volume)
Table North America CAGR by Revenue and Volume, 2021-2026
6.2.3 Europe Market Forecast, 2021-2026
Figure Europe Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Europe Market Estimates and Forecasts, 2021-2026 (in Volume)
Table Europe CAGR by Revenue and Volume, 2021-2026
6.2.4 South America Market Forecast, 2021-2026
Figure South America Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure South America Market Estimates and Forecasts, 2021-2026 (in Volume)
Table South America CAGR by Revenue and Volume, 2021-2026
6.2.5 Middle East & Africa Market Forecast, 2021-2026
Figure Middle East & Africa Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Middle East & Africa Market Estimates and Forecasts, 2021-2026 (in Volume)
Table Middle East & Africa CAGR by Revenue and Volume, 2021-2026
7 Market Competitive
7.1 Global Market by Vendors
Table Global Forged Aluminum Wheels Market by Vendors, 2016-2020 (in Volume)
Table Global Forged Aluminum Wheels Market Share by Vendors, 2016-2020 (USD Million)
Table Global Forged Aluminum Wheels Market Share by Vendors, 2016-2020 (in Volume)
7.2 Market Concentration
Figure Forged Aluminum Wheels Market Concentration by Region
7.3 Price & Factors
Table Price Factors List
7.4 Marketing Channel
Figure Marketing Channels Overview
8 Major Vendors
8.1 Enkei Wheels
Table Enkei Wheels Profile List
Table Microecological Modulator Operating Data of Enkei Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.2 Ronal Wheels
Table Ronal Wheels Profile List
Table Microecological Modulator Operating Data of Ronal Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.3 Superior Industries
Table Superior Industries Profile List
Table Microecological Modulator Operating Data of Superior Industries (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.4 Alcoa
Table Alcoa Profile List
Table Microecological Modulator Operating Data of Alcoa (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.5 Iochpe-Maxion
Table Iochpe-Maxion Profile List
Table Microecological Modulator Operating Data of Iochpe-Maxion (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.6 Uniwheel Group
Table Uniwheel Group Profile List
Table Microecological Modulator Operating Data of Uniwheel Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.7 Accuride
Table Accuride Profile List
Table Microecological Modulator Operating Data of Accuride (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.8 YHI
Table YHI Profile List
Table Microecological Modulator Operating Data of YHI (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.9 Topy Group
Table Topy Group Profile List
Table Microecological Modulator Operating Data of Topy Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.10 CITIC Dicastal
Table CITIC Dicastal Profile List
Table Microecological Modulator Operating Data of CITIC Dicastal (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.11 Lizhong Group
Table Lizhong Group Profile List
Table Microecological Modulator Operating Data of Lizhong Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.12 Wanfeng Auto
Table Wanfeng Auto Profile List
Table Microecological Modulator Operating Data of Wanfeng Auto (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.13 Kunshan Liufeng
Table Kunshan Liufeng Profile List
Table Microecological Modulator Operating Data of Kunshan Liufeng (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.14 Zhejiang Jinfei
Table Zhejiang Jinfei Profile List
Table Microecological Modulator Operating Data of Zhejiang Jinfei (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.15 Yueling Wheels
Table Yueling Wheels Profile List
Table Microecological Modulator Operating Data of Yueling Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.16 Zhongnan Aluminum Wheels
Table Zhongnan Aluminum Wheels Profile List
Table Microecological Modulator Operating Data of Zhongnan Aluminum Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.17 Anchi Aluminum Wheel
Table Anchi Aluminum Wheel Profile List
Table Microecological Modulator Operating Data of Anchi Aluminum Wheel (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
8.18 Guangdong Dcenti Auto-Parts
Table Guangdong Dcenti Auto-Parts Profile List
Table Microecological Modulator Operating Data of Guangdong Dcenti Auto-Parts (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
9 Conclusion
List of Table
Table Product Specifications of Forged Aluminum Wheels
Table Products Segment of Forged Aluminum Wheels
Table Global Forged Aluminum Wheels Market by Type, 2016-2026 (USD Million)
Table <15 inch Overview
Table 15-17 inch Overview
Table >18 inch Overview
Table Application Segment of Forged Aluminum Wheels
Table Global Forged Aluminum Wheels Market by Application, 2016-2026 (USD Million)
Table Passenger Vehicle Overview
Table Commercial Vehicle Overview
Table Global Forged Aluminum Wheels Market by Region, 2016-2026 (USD Million)
Table Cost of Forged Aluminum Wheels
Table Market Dynamics
Table Policy of Forged Aluminum Wheels
Table GDP of Major Countries
Table Technology of Forged Aluminum Wheels
Table Market Entry of Forged Aluminum Wheels
Table <15 inch CAGR by Revenue and Volume, 2016-2020
Table 15-17 inch CAGR by Revenue and Volume, 2016-2020
Table >18 inch CAGR by Revenue and Volume, 2016-2020
Table <15 inch CAGR by Revenue and Volume, 2016-2026
Table 15-17 inch CAGR by Revenue and Volume, 2016-2026
Table >18 inch CAGR by Revenue and Volume, 2016-2026
Table Passenger Vehicle CAGR by Revenue and Volume, 2016-2020
Table Commercial Vehicle CAGR by Revenue and Volume, 2016-2020
Table Passenger Vehicle CAGR by Revenue and Volume, 2021-2026
Table Commercial Vehicle CAGR by Revenue and Volume, 2021-2026
Table Asia-Pacific CAGR by Revenue and Volume, 2016-2020
Table North America CAGR by Revenue and Volume, 2016-2020
Table Europe CAGR by Revenue and Volume, 2016-2020
Table South America CAGR by Revenue and Volume, 2016-2020
Table Middle East & Africa CAGR by Revenue and Volume, 2016-2020
Table Asia-Pacific CAGR by Revenue and Volume, 2021-2026
Table North America CAGR by Revenue and Volume, 2021-2026
Table Europe CAGR by Revenue and Volume, 2021-2026
Table South America CAGR by Revenue and Volume, 2021-2026
Table Middle East & Africa CAGR by Revenue and Volume, 2021-2026
Table Global Forged Aluminum Wheels Market by Vendors, 2016-2020 (in Volume)
Table Global Forged Aluminum Wheels Market Share by Vendors, 2016-2020 (USD Million)
Table Global Forged Aluminum Wheels Market Share by Vendors, 2016-2020 (in Volume)
Table Price Factors List
Table Enkei Wheels Profile List
Table Microecological Modulator Operating Data of Enkei Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Ronal Wheels Profile List
Table Microecological Modulator Operating Data of Ronal Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Superior Industries Profile List
Table Microecological Modulator Operating Data of Superior Industries (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Alcoa Profile List
Table Microecological Modulator Operating Data of Alcoa (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Iochpe-Maxion Profile List
Table Microecological Modulator Operating Data of Iochpe-Maxion (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Uniwheel Group Profile List
Table Microecological Modulator Operating Data of Uniwheel Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Accuride Profile List
Table Microecological Modulator Operating Data of Accuride (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table YHI Profile List
Table Microecological Modulator Operating Data of YHI (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Topy Group Profile List
Table Microecological Modulator Operating Data of Topy Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table CITIC Dicastal Profile List
Table Microecological Modulator Operating Data of CITIC Dicastal (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Lizhong Group Profile List
Table Microecological Modulator Operating Data of Lizhong Group (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Wanfeng Auto Profile List
Table Microecological Modulator Operating Data of Wanfeng Auto (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Kunshan Liufeng Profile List
Table Microecological Modulator Operating Data of Kunshan Liufeng (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Zhejiang Jinfei Profile List
Table Microecological Modulator Operating Data of Zhejiang Jinfei (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Yueling Wheels Profile List
Table Microecological Modulator Operating Data of Yueling Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Zhongnan Aluminum Wheels Profile List
Table Microecological Modulator Operating Data of Zhongnan Aluminum Wheels (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Anchi Aluminum Wheel Profile List
Table Microecological Modulator Operating Data of Anchi Aluminum Wheel (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
Table Guangdong Dcenti Auto-Parts Profile List
Table Microecological Modulator Operating Data of Guangdong Dcenti Auto-Parts (Sales Revenue, Sales Volume, Price, Cost, Gross Margin)
List of Figure
Figure Forged Aluminum Wheels Picture
Figure Industry Chain Structure of Forged Aluminum Wheels
Figure Manufacturing Process of Forged Aluminum Wheels
Figure SWOT of Forged Aluminum Wheels
Figure <15 inch Market Size and Growth, 2016-2020 (USD Million)
Figure <15 inch Market Size and Growth, 2016-2020 (in Volume)
Figure 15-17 inch Market Size and Growth, 2016-2020 (USD Million)
Figure 15-17 inch Market Size and Growth, 2016-2020 (in Volume)
Figure >18 inch Market Size and Growth, 2016-2020 (USD Million)
Figure >18 inch Market Size and Growth, 2016-2020 (in Volume)
Figure <15 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure <15 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure 15-17 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure 15-17 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure >18 inch Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure >18 inch Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Passenger Vehicle Market Size and Growth, 2016-2020 (USD Million)
Figure Market Size and Growth, 2016-2020 (in Volume)
Figure Commercial Vehicle Market Size and Growth, 2016-2020 (USD Million)
Figure Market Size and Growth, 2016-2020 (in Volume)
Figure Passenger Vehicle Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Passenger Vehicle Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Commercial Vehicle Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Commercial Vehicle Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Asia-Pacific Market Size and Growth, 2016-2020 (USD Million)
Figure Asia-Pacific Market Size and Growth, 2016-2020 (in Volume)
Figure Asia-Pacific Market Size by Type
Figure Asia-Pacific Market Share by Type
Figure Asia-Pacific Market Size by Application
Figure Asia-Pacific Market Share by Application
Figure North America Market Size and Growth, 2016-2020 (USD Million)
Figure North America Market Size and Growth, 2016-2020 (in Volume)
Figure North America Market Size by Type
Figure North America Market Share by Type
Figure North America Market Size by Application
Figure North America Market Share by Application
Figure Europe Market Size and Growth, 2016-2020 (USD Million)
Figure Europe Market Size and Growth, 2016-2020 (in Volume)
Figure Europe Market Size by Type
Figure Europe Market Share by Type
Figure Europe Market Size by Application
Figure Europe Market Share by Application
Figure South America Market Size and Growth, 2016-2020 (USD Million)
Figure South America Market Size and Growth, 2016-2020 (in Volume)
Figure South America Market Size by Type
Figure South America Market Share by Type
Figure South America Market Size by Application
Figure South America Market Share by Application
Figure Middle East & Africa Market Size and Growth, 2016-2020 (USD Million)
Figure Middle East & Africa Market Size and Growth, 2016-2020 (in Volume)
Figure Middle East & Africa Market Size by Type
Figure Middle East & Africa Market Share by Type
Figure Middle East & Africa Market Size by Application
Figure Middle East & Africa Market Share by Application
Figure Asia-Pacific Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Asia-Pacific Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure North America Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure North America Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Europe Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Europe Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure South America Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure South America Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Middle East & Africa Market Estimates and Forecasts, 2021-2026 (USD Million)
Figure Middle East & Africa Market Estimates and Forecasts, 2021-2026 (in Volume)
Figure Forged Aluminum Wheels Market Concentration by Region
Figure Marketing Channels Overview