Technology:\n- 7 mm square chain with fabric sleeve to prevent damage to the bicycle‘s paintwork\n- The chain, the case as well as supporting elements of the locking mechanism are made of special hardened steel\n\nTransport:\n- Convenient compact transport by wrapping the chain around the seat post\n- For the protected transport we recommend, for example, the frame bags ST 2012, ST 2200 and ST 2250\n\nTips:\n- Very handy use because only one end of the chain must be locked