The Kryptonite Keeper 785 Integrated Chain Lock is crafted from heat-treated boron manganese steel which offers strong and durable holding power against attacks. This Chain Lock features a nylon-webbing sleeve designed to protect your bike from scratches and the disc-style cylinder is pick and drill resistant. The Kryptonite Keeper 785 Integrated Chain Lock has been created using the latest technologies from Kryptonite and offers a high level of security against attacks. Kryptonite Keeper 785 Integrated Chain Lock Features The Keeper Integrated Chain is a hardened triple heat-treated boron manganese steel chain made with 7 mm four-sided links The Keeper Integrated Chain secures with a new integrated lock head Chain links are enclosed in a nylon-webbing sleeve End pin-link design secures the chain with the hardened deadbolt Offers great holding power against attacks High security disc-style cylinder Recommended for use in low crime areas Comes with 2 ergonomic 'I' keys The new 'I' key makes opening a disc-style cylinder much smoother 85 cm Length Approved to bicycle Bronze Sold Secure standard