Kryptonite Evolution Series 4 Disc Lock

Double deadbolt design gives additional protection against twist attacks
14mm hardened MAX-Performance steel shackle
Includes 3 keys--2 'I' Keys and 1 with a high-intensity L.E.D. bulb for convenient, easy unlocking in the dark
New patent-pending, reinforced oval crossbar design is stronger than a typical round tube
Disc cylinder now includes a new anti-float feature to keep the discs from moving and re-adjusting when in transit