Mastif

• X4P Quattro Bolt Locking Mechanism locks shackle on four sides
• Z-Cylinder is bump-proof and resists picking, pulling or drilling
• Rounded design and centered keyway eliminates pry points
• Co-molded crossbar cover and double rubber coated shackle protects finishes
• All-metal end caps provide additional protection against hits and drops
• Automatic keyway covers helps seal lock internals against the elements
• 10mm (0.39”) titanium reinforced, hardened steel hexagonal link chain resists cutting or prying
• Chain cover protects paint and finishes, embroidered logo won’t flake or wear off
• Boxer U-lock can also be used as a disc lock