The OnGuard Mastiff 80 cm Chain Lock delivers compact, high-strength protection using an 800 mm (31.5 in) titanium-reinforced hardened-steel chain and an integrated X2P Dual Lock Down head that locks both sides for superior pull and pry resistance. The durable double rubber-coated lock body protects finishes and absorbs impacts, while the automatic keyway cover keeps dirt and moisture from entering the cylinder. Includes five precision laser-cut keys, one equipped with an LED light, and is backed by OnGuard’s anti-theft protection program.