Kryptonite, New York Cinch Ring Chain 1213 & EV Disc, Chain Lock, Key, 12mm, 130cm, 4.3', BlackHook n Loop fasteners to hold the nylon cover in place14mm hardened MAX Performance steel shackle12mm six sided chain links made of 3T manganese steel including a larger cinch ringHardened double deadbolt design gives additional protection against twist attacksThe higher security disc cylinder now includes an anti float feature to keep the discs from moving and readjusting when in transitIncludes 3 Stainless Steel keys 2 new "I" keys and one with high