CHAIN WITH XTREM MEDIUM DISC LOCK Hardened passivated steel chain Ø 13.5 mm Black braided nylon protection sheath| Reversible hardened steel shackle Ø 18 mm Black PVC shackle protection sheath Hardened steel double locking mechanism Hardened steel body High-security 7-disc cylinder Anti-sawing, Anti-sawing cylinder Anti-rotation device on the shackle in the event of sawing| ABS end caps and keyway with dust cover| Supplied with 3 milled keys Exclusive code key copying service