Details: * & * Color:Black(As pictures show) * Material: 65STeel *Specification: 1/2" (Male)-3/8" (Female)3/8" (Male)-1/4" (Female)3/8" (Male)-1/2" (Female)1/4" (Male)-3/8" (Female) * Size(Approx.).: 1/2" (Square Hole) - 3/8" (Square Head): 12.5*9.5mm 3/8" (Square Hole) - 1/4" (Square Head):9.5*6.3mm 3/8" (Square Hole) - 1/2" (Square Head):9.5*12.5mm 1/4" (Square Hole) - 3/8" (Square Head) square):6.3*9.5mm * The socket adapter is made of steel for durability and long life * The surface of each plate is electroplated and darkened finished, which guarantees corrosion resistance. The body adapter is designed with a ball mount and a small hole to keep the sockets in place and secure * There are a total of four different sized socket adapters in this kit and can be used for multiple sockets * These adapters are small in size and easy to store; If you receive the tool kit, this kit should be the same Package Contents: 4* Socket Adapters Note:The actual colors 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.