13mm massive ultra hardened steel shackle provides maximum cut resistance
Unique OnGuard cylinder offers optimum resistance against physical attack and picking
Reinforced sleeve over crossbar and cylinder for additional security
Triple layer steel crossbar
Quattro bolt locking mechanism with dual lockdown protection pins the steel shackle at both ends creating a double lock that can withstand up to 8 tons of pull force while the newly designed M-cylinder provides an added level of security and ease of use
