Practicability in everyday cycling: the Abus Chain Lock 1200 is a low-priced chain lock designed for situations in which there is a low risk of theft . The number combination is set in the factory and included in the package.The chain in the ABUS lock is made of specially hardened steel and is 4mm thick. It is encased in a textile sleeve to protect against scratches to your bicycle's paintwork if you chain it to lampposts, bicycle or to other bikes. ¢ 4 mm thick rounded chain with textile sleeve to prevent damage to paintwork¢ The chain is made of specially hardened steel¢ Pre-set combination code