When ultimate security is demanded, Abus' Buffo U Lock 34's 12 mm thick, hardened steel shackle and lock body will help prevent targeting of your bicycle. The 9 inch long loop easily fits around racks, and a soft coating prevents marring of frame finishes. Abus provides a frame mounting bracket that's easy to use and fits most traditional frame designs. The double locking mechanism securely latches both ends and uses a reversible key for quick insertion. The Abus Buffo U Lock 34 is available in the color Black.