Description: Chrome molybdenum socket set. Hardened and tempered for corrosion resistance. Protect the wheels from chipping and scratching inside of the wheel nut holes. Comes in a Handy Storage Case. Colour coded for easy identification. Specification: Sizes: 17mm, 19mm , 21mm Drive: 1/2'' (12.5mm) Material: Chrome molybdenum Length: Approx. 77mm/3.0 Inch Package Includes: 3 Pieces Sockets 1 Piece Storage Case