Highly durable Kryptonite New York Lock LS horseshoe made from hardened Max-Performance steel.16mm "horseshoe" made from hardened MAX-PERFORMANCE steel. DOUBLE DEADBOLT mechanism for added security. High security disc lock body. Sliding guard protects the lock body and extends its life. Includes 3 keys - 1 LED key with replaceable battery and 2 ergonomic keys. Key Safe program - if keys are lost, send 1st pair of standard replacement keys free of charge. (registration required) Dimensions: 10.2cm x 26cm Protection level: 9/10