Kryptonite Disc Lock - Evolution Disc Lock - BlackLENGTH 48x54mm (1. 8 x 2. 1) WEIGHT 0. 72 kgs (1. 60 lbs) 8 10 Kryptonite security rating 14mm HARDENED MAXPERFORMANCE STEEL SHACKLE 3 STAINLESS STEEL KEYS including new key design and one LED replaceable key fob. DOUBLE DEADBOLT DESIGN gives additional protection against twist attacks. Available in MULTIPLE COLORS. Patented*, HARDENED OVAL CROSSBAR design is stronger than a typical round tube. SLIDING DUST COVER protects cylinder.