Heavy Duty Anti-Theft Bike Lock

Security & Convenience: - Five and a half password round, with an additional hidden round between the upper and lower numbers, totaling over 1,000,000 password combinations. More secure than an ordinary five-password lock. - Simple to set a password, eliminating the need to carry a key for added convenience.

Strong & Durable: - Made from 6mm solid alloy steel chain, sealed with welding technology for enhanced strength and anti-theft performance. - Built-in zinc alloy lock core, providing anti-smashing, anti-slip, and rust-resistant features. - High-quality polyester cloth wrapping offers scratch-resistance and wear-resistance, protecting your bike's paint and enhancing sustainability.

Anti-Wear & Sustainable: - The chain lock is wrapped in high-quality polyester cloth, offering excellent scratch and wear resistance. - Protects bike paint and ensures no damage from outdoor elements like hot or cold weather. - With daily cloth cover protection, the chain's service life is extended compared to ordinary chains.

Versatile: - 3.2 feet long, suitable for locking 2-3 bikes together, or securing your bike to trees, gates, fences, railings, thick poles, or other surfaces. - Ideal for motorcycles, scooters, skateboards, grills, ladders, doors, lawn mowers, and many other applications.

Note: - Ensure the number wheel is set to the correct unlocking password state before turning the reset disk when changing a password.