West Biking Bike Lock Motorcycle Wire Lock Anti-Hydraulic Pressure Cut Anti-Theft Lock, Specification: U-shaped Lock+Cable 1. Material: zinc alloy lock core, steel, surface silicone coating 2. Size: about 19.5x12.7 cm 3. Weight: about 760 grams 4. Application: bicycles, electric vehicles, motorcycles, etc. Features: 1. Anti-theft technology lock core, dislocation design, low mutual opening rate 2. Bold zinc alloy lock body, firm and wear-resistant, safe and shear-resistant 3. The lock body has no pin design, silicone wrapped, smooth surface, comfortable hand feeling, and does not hurt the body 4. Double unlock mode, safe and anti-theft 5. Snake-shaped groove anti-theft key installation steps: 1. Place the anti-scratch pad where you want to install the lock bracket 2. Install the bracket on the seat tube 3. Use tools to tighten the screws to fix the position of the bracket 4. Turn the fixed lock bracket to a convenient position 5. Install the lock on the lock frame 6. Turn the lock upward firmly and fix the position