• 10mm 54″ 10.5 lbs. with integrated lock has a Four Star plus security level rating making this lock highly theft resistant for high crime areas
• Patent pending X4 Power Quattro bolt locking mechanism provides maximum protection
• Integrated lock has a dual steel ball locking mechanism to provide greater defense

Product Description
OnGuard Mastiff Integrated Chain 10mm 54″ 10.5 lbs. with integrated lock has a Four Star plus security level rating making this lock highly theft resistant for high crime areas
Patent pending X4 Power Quattro bolt locking mechanism provides maximum protection
Integrated lock has a dual steel ball locking mechanism to provide greater defense
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