Features: *1/2 inch, 12.7mm driver interface 6 Point (Hex) *The specifications are clearly marked on each sleeve for easy use. *With leather ring + latch, firm and not easy to fall off *20 Specifications for you to choose from ：8mm，9mm，10mm，11mm，12mm，13mm，14mm，15mm，16mm，17mm，18mm，19mm，20mm，21mm，22mm，23mm，24mm，27mm，30mm，32mm Specifications: Product Name: Socket Driver Head Material:Metal Color:Black Model:1/2" Square drive hexagon Optional Size:8mm，9mm，10mm，11mm，12mm，13mm，14mm，15mm，16mm，17mm，18mm，19mm，20mm，21mm，22mm，23mm，24mm，27mm，30mm，32mm（as picture） Quantity:1pc Package Content: 1* Socket Driver Head Note: 1. 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. 2. Please allow slight manual measurement deviation for the data.