This Master Lock padlock features a 40mm wide covered solid aluminum body that is durable and resists corrosion. The 6mm diameter shackle is 21mm long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. It includes 2 keys and has a limited lifetime warranty. The padlock has a black, color-matched key head. Additional specifications include a 40mm wide covered solid aluminum body padlock with dual locking levers for increased pick resistance.