WEST BIKING Bicycle Lock Motorcycle Electric Car Anti-Theft Lock, Specification: Long U-shaped Lock 1. Material: zinc alloy lock core, silicone wrap 2. Size: about 29x16 cm 3. Weight: about 1111 grams 4. Application: bicycles, electric vehicles, motorcycles, etc. Features: 1. Zinc alloy lock body lock frame, strong and wear-resistant 2. Bold lock core, safe and anti-theft, anti-smash and anti-shear 3. The outer layer of silica gel wraps, feels comfortable and does not hurt the body 4. Double unlock mode, safe and anti-theft 5. Key with serpentine groove design, complex texture design of key teeth, safe and anti-theft 6. Waterproof protection, not easy to rust 7. Pure copper key, precision lock cylinder, anti-theft technology, misplaced design, low mutual opening rate installation steps: 1. Put the rubber pad on the bike bar 2. Install the bracket on the rubber pad 3. Put the screws in the holes and tighten them 4. Install the lock on the bracket