DescriptionThis item contains the 3 common sizes of sockets adaptor they are well made and solid. The colour coded rings make it so easy to pick the right one. Super handy to have the three different sizes and so much quicker to be able to use drill, very convenient for attaching varied sized sockets to a power drill and using extension bars to enable access to awkwardly located nuts etc. Perfect adapters for fitting type cordless screwdrivers for quick socket use.Feature- Color: As shown- Material: Steel- Size: 1.28 x 1.28 x 7.21 cm.- This adapter set is designed to provide a securely locked in extension to your existing tool. Provides additional length to reach into a multitude of hard to reach spaces. The spring ball lock ensures a tight fit into the driver head to prevent slipping during use. Specifically machined to fit securely into a hand held driver, drill driver or impact wrench- The Shaft Quick Change Hex Design allows to switch easy fast between the different size adapters without stripping at high operations Sandblasted Finish for best durability - Spring Loaded Extension Ball Bearings holds onto the sockets securely preventing fall-offs- Made if quality streel to ensure a long lifetime through tough torque jobs without breaking or rusting- Hex turn square connector- Applies to the screwdriver handle or electric screwdriver tools (hexagonal hole or three jaw chuck can be)- Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand Thank you