Manufacturer’s reference: “193145. Description Special keys manufactured in chrome vanadium steel S2 Code of colours each wrench with coating of different colours for easy recognition of each measure non-slip coating on each wrench. area of contact with the hand Rugged magnetic mouths of the keys to prevent slippage during the work convenient plastic holder for a quick and easy removal and placement of the keys. Composition 1 “5, 2, 25, 3, 4, 5, 6, 8, 10 mm