CHAIN WITH XTREM MINI DISC LOCK Alarm -Chain in tempered passivated steel Ø 13.5 mm Protective sheath in black braided nylon| Reversible shackle Ø 16 mm in tempered steel Protective sheath for shackle in black PVC Double locking mechanism in tempered steel Body in tempered steel High-security cylinder with 7 discs Anti-sawing, anti-picking cylinder Anti-rotation device on the shackle in the event of sawing ABS end caps and keyway