This item contains the 3 common sizes of sockets adaptor they are well made and solid. Made by material, durable and provide . Perfect adapters compatible fitting type cordless screwdrivers compatible quick socket use. Feature - ColorAssorted Color - Material: Vanadium Steel. - Size: 11 x 1.7cm. - Adopt high Vanadium Steel source material, ensure long time steady use. - Included 3PCS different size(1/2, 3/8, 1/4) auto parts adapter, make you connect important part. - Made if quality to ensure a long lifetime through tough torque jobs without breaking or rusting. - turn square connector, practical and useful. - 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! Package list: 3 x Socket Bits