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*9.5mm3/8" (Square Hole) - 1/4" (Square Head):9.5*6.3mm3/8" (Square Hole) - 1/2" (Square Head):9.5*12.5mm1/4" (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 socket adapters of different sizes 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 samePackage Contents:4* Adapter SlotNote: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.