The Abus Steel-O-Chain 8900K Chain Lock is a strong and versatile mid-level security solution, perfect for urban riders. Designed with 8mm square hardened steel chain links, this lock provides reliable protection against theft, either as a standalone lock or as a secondary option to complement a U-lock. The pinned fabric sleeve helps protect your bike&';s frame from scratches, while the lock body and supporting components are made of specially tempered hardened steel for added durability. Equipped with an anti-drill protection plate and two supplied keys, the 8900K ensures both security and convenience for cyclists in moderate-risk environments. Features: 8mm square hardened steel chain links for strong mid-level security 85cm (2.8 feet) length offers flexible locking options Pinned fabric sleeve protects bike frame from scratches and damage Lock body and components made from special temper-hardened steel for added strength Anti-drill protection plate at the keyhole for enhanced security Includes two keys for convenience and backup Ideal for urban riders as a primary or secondary security lock