The Chain Lock Steel-O-Chain 5805K is particularly suitable for cyclists who often find themselves in areas with a low risk of theft. The flexibility of the chain locks is ideal for cyclists who need to secure their bikes in various locations. The clear advantage of the Chain Lock Steel-O-Chain 5805K, with its 5 mm square chain made of specially hardened steel, is its flexibility. It offers numerous options for securely attaching your bike to different objects. Ideal items include sturdy bike racks or lamp posts, as long as the bike does not obstruct anyone when left there.