Kryptonite Evolution Series 4 Disc Lock

* 14mm hardened Max-Performance steel shackle resists cutting and leverage attacks * Double deadbolt locking mechanism has extensive holding power * High security, disc-style cylinder with reinforced anti-drill, anti-pull protection system * Sliding dust cover keeps the bunnies out * 3 Keys – one lighted with high intensity bulb and replacable battery * Key safe program * 8/10 Security Rating