Sturdy and Durable: The bicycle lock cylinder is made of zinc alloy, which is not easy to break, and multiple combinations can increase the length. The steel cable is thickened to prevent strong cuts, and the PVC coating helps prevent scratching the body. Lightweight and Portable: It can be held with one hand, and the ring shape is small and mini, which can be carried with you. The side reflective strip design makes riding safer at night. Humanized Design: The lock head of the bicycle lock is made of zinc alloy, which helps to turn the lock accurately without jamming. The lock body is wrapped by a piece of PVC material to protect the bicycle from scratches. There is a reflective strip on the side, which makes riding safer at night. Advanced Security: 2 anti-theft keys, double-sided page, unique key opening design, cumbersome key teeth, difficult to copy, improving security and anti-theft performance. Wide Application: Multiple locking methods, complete function. Suitable for bicycles, skateboards, scooters, gates and fences, lawn mowers, sports equipment, etc. After unlocking and removing the key, it can be locked without a key, just insert it gently. Product Description: 1. Double-sided anti-theft key, unique key port design, side reflective strip. The PVC coating feels comfortable, has a long service life, and can effectively prevent the frame from being scratched. 2. Mini portable, can be held with one hand, ring shape, small and mini, can be carried anywhere. Zinc alloy lock core and thick steel cable. 3. A variety of ways to lock the car, with complete functions, no key is needed for locking, it can be locked with a single tap and can be combined to increase the length. Product specifications: Weight: about 240g. Color: black. Size: about 12mm in diameter. About 140mm in height. Package contents: 1 bicycle lock. 2 keys become very rich