Although the ABUS Chain Lock 1500 60cm lock requires a key, it can still be opened quickly if you\\\'re in a hurry. The trick here is that the ABUS 1500 Web Chain Lock can be clicked shut without the key being in the lock. Basic protection at low theft risk. Recommended for securing low-range bicycles and children\\\'s bikes. Key Features: 4 mm chain with synthetic coating to prevent damage of the bicycle\\\'s paintwork > The chain is made of special steel > ABUS quality locking cylinder > Two keys are supplied with the lock > ABUS quality automatic cylinder with user-friendly reversible key > Convenient transport around the seat post frame