The Bike-It Mammoth Lock and Chain - 1.8m is designed for all securing needs, especially suited to secure a bike to a permanent fixing.Hardened steel lock bodyDouble bearing lock mechanism11mm hardened steel closed U-shackleBright green colourSleeve protects wheels and paintworkMCN Magazine 5 Star Value RatingThe Bike-It Mammoth Lock and Chain - 1.8m has been constructed from either 10mm or 12mm square link hardened steel chain in a 1.8m length. The lock has a 11mm hardened steel closed U-shackle and a double bearing lock mechanism. There is also a hardened steel lock body.This Lock and Chain are bright green to act as a visual deterrent and has a sleeve around the chain to protect the bikes wheels and paintwork. The Bike-It Mammoth has a MCN Magazine 5 Star Value Rating.