The high-quality \\\"Plus\\\" cylinder of the Chain Lock Steel-O-Chain™ 9808 is the safest that ABUS currently offers. No matter if someone tries to pick the bike lock or the \\\"Plus\\\" cylinder with special tools - they won\\\'t get very far. The hidden \\\"Plus\\\" cylinder is the safest disc cylinder currently used in ABUS products. Key Features > 8 mm thick square chain > The chain, the lock body and supporting elements of the locking mechanism are made of specially hardened steel > Automatic keyhole cover to prevent corrosion and the ingress of dirt > ABUS Plus cylinder for high protection against manipulation attempts, e.g. picking > Good protection at medium theft risk > Recommended for securing good bicycles > The longer the chain, the easier the bicycle can be locked to a fixed object