The OnGuard Mastiff 150 cm Chain Lock combines long reach with maximum protection. Its 1350 mm (53.1 in) titanium-reinforced hardened-steel square links resist cutting, prying, and sawing. The integrated X2P Dual Lock Down head secures both sides for enhanced strength, while the double rubber cover protects against impact. A weather-sealed keyway cover ensures long-term durability. Includes five laser-cut keys (one with LED light).