Compact, Sturdy and Strong The chain measures 10.9 x 2.36 x 1.77 cm when folded, it is very small in size, but it weighs 735 g with the bracket. PA6 plastic + high strength steel alloy lock body (0.39 x 0.59 inch) and zinc alloy + copper alloy cylinder with cut and unbreakable ABS bike cover. Passed 3.5m drop test and 5000N pull test. The folding lock makes your bike safer. Four-digit passwordThe four-digit anti-theft combination protects your bike more securely, you can easily set your own password. The dial turns smoothly, with a "click" each time. Resetting the bike lock requires some effort to depress the black button to the desired depth. You never have to worry about accidentally setting a password without knowing the new one Compact design: 1. The bracket can fix the padlock on the road, it won't shake or make noise even on bumpy roads. PA6 plastic cover, protect your bike from scratches caused by folding locks, also protect the lock body from rust and corrosion. 3. After entering the correct password, press the gray button to open the combination lock, making it harder for others to open your bike lock without the password Reflector on The stall : At night, it is easier for the driver to see through the car behind. A foldable bike lock frame protects the rider. Not only protects your bike, but also helps keep you safe when riding at night