Benefit from the practical automatic locking system of this bike lock. The Steel-O-Chain 4804K chain lock is especially suitable when you need to lock your bike quickly. Thanks to the automatic cylinder, you no longer need a key to lock your bike. You simply have to open the lock and press the locking bolt into the lock body - ready. The bike lock is ideal for securing cheap bikes and children's bikes with a low risk of theft. - Security level: 4 - Theft protection: Basic security - Lock type: Key lock - Details: - 4 mm thick square chain with textile tube to protect against paint damage - Child-friendly handling thanks to symbols instead of numbers - The chain is made of special steel - Symbol code individually adjustable - Type: Chain lock Dimensions chain lock - Chain length: 75 cm - Chain link diameter: 4 mm.