Features: High Grade Chrome Vanadium Steel Socket, and Longer Lifetime Chrome Plated Finish to Anti-Corrosion High Hardness and Torque, fully meet standard 1/4" Socket Wrench, High Torque for using by Drivers and Socket Wrenches Specification: Name:1/4 Hex Socket Material: Chromium-vanadium Steel Deep Sockets: 6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm,19mm Color:silver Length:65mm Quantity:1pc Package contents: 1pc * Deep Socket Notes: 1.Transition: 1cm =10mm =0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.