- Excellent anti-theft performance: alloy steel main body resists cutting and lever attacks; double lock buckle provides strong anti-pry protection; PVC coating around the lock ring guards your bicycle from scratches. - Keyless convenience: four-digit password with initial setting 0000; resettable and unlockable by code; no keys to carry; heavy-duty anti-theft locking with a smooth press-to-lock and easy lock/unlock action. - Easy to carry: comes with a bracket to fix the U-lock on top of the bicycle for quick access and compact storage; portable and space-saving. - Large locking space: internal locking area is 7.5 x 4.5 inches; external dimensions are 9.8 x 7.1 inches; weighs 2.0 pounds; larger internal space than typical U-locks to accommodate larger items. - Practical use scenarios: - City commuting or running errands: secure your bike frame and front wheel to a rack during short stops. - Campus or office parking: lock to posts in busy areas and keep helmets or accessories secured. - Longer stops or bike trips: the generous internal space helps lock larger frames or cargo racks to sturdy fixtures.