The Oxford Boss Chain Lock offers Sold Secure Powered Cycle (Motorcycle) GOLD and is SBSC certified. Insurance discounts are available in the UK when you use this lock. The padlock has a double-locking shackle mechanism with an anti-pick and anti-drill lock cylinder. The hardened steel shackle prevents bolt cropping, and it can also be used as a disc lock. A dust cover protects the lock barrel from dirt ingress. The 12mm square link chain is made from Ni-Cro-Mo alloy steel and is a case-hardened chain to resist bolt cutters and zinc coated to prevent corrosion. A protective cloth sleeve protects your paintwork, and long links reduce weight. This fits all Oxford Products ground anchors and can be easily stowed under the seat. A replacement key service is available. The chain is 1.2 Metres long.