Features:- Kryptonite´s STRONGEST chain for ULTIMATE SECURITY in high theft areas- Attack resistant disc lock features hardened DOUBLE DEADBOLT design- Features a durable nylon chain cover for SCRATCH PREVENTION- Heavy duty 14.5mm Round 3T HARDENED STEEL LINKS- Includes 3 Stainless Steel Keys- Key Safe ProgramSpecifications:- Product dimensions: 4.9´ (150cm) chain length 15mm shackle diameter- Product weight: 14.7 lbs (6.6 kgs)