On Guard Mastiff Series #8020 Bike Lock w/3.5' Chain

3.5' Square-link Chain with integrated lock. 3.5' 10mm (0.39") titanium reinforced hardened square link chain mated to an integrated X2P Dual Lock Down head featuring new double rubber cover for better protection against bumps and hits. 110cm x 10mm(3.57' x 0.39")

• Lighter, more compact package, 10mm hex link steel chain and square bar links are titanium reinforced to resist attacks from saws and cutters
• X4P and X2P locking mechanisms feature four or two point lockdown protection
• Quattro and Dual Lock mechanisms feature Dual Lockdown Protection
• Reinforced sleeve over crossbar and cylinder for additional security
• Locks have vinyl coated large diameter ultra hardened steel shackles and rubber coated end caps
• Water and heat resistant embroidered chain cover prevents scratching and allows compact coiling
• Anti-theft protection plan