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 bulb for convenient, easy unlocking in the dark Finish Line Dry Teflon Lube already coated inside the lock provides additional durability and protection 
