Kryptonite lock brackets allow for easy and safe transportation of U-Locks.Unique 360-degree rotation provides the ability to micro-adjust the lock angle to better fit and align with the bike frameHeavy-duty strap system contours to the shape of the bicycle frame providing constant contact with the tube while in transitCompatible with 13mm and 16mm (round) shaped shackles/cablesFits bicycle frame tubing 25 - 80mm. Round oval triangular or square shapes