Master Lock ExcellTM Padlocks are made with cutting edge technology to deliver unprecedented security. They feature tough cut patented octagonal boron carbide shackles which are 50% tougher to cut than hardened steel. This ExcellTM 4-digit resettable combination padlock has up to 10,000 possible combinations and is easy to reset (no reset tool needed). The angled dials with "blind use" feature are practical and easy to use. The roller pin locking mechanism delivers an exceptional level of resistance to pulling/prying. Supplied with 4 keys and a Lifetime Warranty against mechanical failure. Suggested Uses: Gates, sheds, storage units, fences, containers and chains.The Master Lock M175EURDLH has the following specifications: 50mm ExcellTMTM zinc body with brass finish 4-digit resettable combination padlock - 51mm Octagonal boron carbide shackle, 9mm diameter - Roller pin locking mechanism - 10,000 possible combinations