Excell Padlocks are packed full of extra tough features and patented technology. This 60mm stainless steel padlock has a Titanium reinforced outer body for higher strength and durability. It has a dead bolt locking mechanism, which makes this padlock extra tough to pull/pry open. It has a resilient 4-pin tumbler cylinder and a patented shrouded octagonal boron-carbide shackle, whch is exceptionally hard to cut. Covered keyway for better protection against dust and water.