Kryptonite New York Fahgettaboudit Chain 1415 and Disc Lock: 5 (150cm)Hook n Loop fasteners to hold the nylon cover in place 14mm six sided chain links made of 3T manganese steel 15mm hardened MAX Performance steel shackle Hardened double deadbolt design gives additional protection against twist attacks Patented, hardened oval cross bar design is stronger than a typical round tube New York Disc Lock with higher security disc style cylinder Includes 3 Stainless Steel keys 2 new "I" keys and one with a high intensity LED