A high security integrated lock and chain for your bike, ebike or motorbike Features: 10mm six-sided chain links made from 3T manganese steel Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability High security disc-style cylinder is pick and drill resistant Patented, reinforced oval crossbar lock head Sliding dustcover protects and extends cylinder life 3 stainless steel keys one led lighted key with replaceable battery and 2 new, ergonomic ‘i” keys Durable weather-resistant nylon sleeve prevents scratches Key Safe Program Product dimensions: 160cm chain length Product weight: 4.40 kgs Patent D564339 (other patents pending)