Description: Matte chrome finish Material: Chrome Vanadium 1/4 "bushing length: 40mm Length of sockets 3/8 ": 50mm Length of the sockets 1/2 ": 55mm Can be used on XZN head screws (with multiple teeth) Practical: the support rail can be fixed to the wall to save space in the workshop Specification: Material: Metal Size: Approx 195x50mm/7.7x2 Inch Package Includes: 9 Pieces pentagon screw sleeve