Kryptonite Keeper 880 Chain & Padlock Chain lock keeps your favorite two-wheeled mode of transportation safely secured in moderate crime areas 2.5-inch round padlock has armor protected shackle and deadbolt locking mechanism; eight-millimeter, four-sided, hardened links made from 3t manganese steel Pass-through end link enables easy padlock attachment; durable nylon cover protects from scratches and patent-pending end link design secures chain to deadbolt Measures 33.5 inches in length with 3.5-pound weight; comes complete with two "I-style" keys Includes limited lifetime manufacturer's warranty