• 12mm six-sided, chain links made of 3T HARDENED MANGANESE STEEL for maximum strength
• Durable, protective nylon cover with hook-n-loop fasteners to hold in place
• Includes Evolution series 4 Disc Lock with 14mm MAX-PERFORMANCE STEEL SHACKLE
• Patented*, oval hardened STEEL CROSSBAR for extra security
• Hardened DOUBLE DEADBOLT locking for extensive holding power
• HIGH SECURITY DISC-STYLE CYLINDER  with reinforced anti-drill, anti-pull protection system
• SLIDING DUSTCOVER protects and extends cylinder life
• 3 STAINLESS STEEL KEYS – one lighted with high intensity bulb and replaceable battery
• Key Safe Program

*Patent D564339