Combination Chain Lock for Bicycles,Security Lock with Extra-Long 90cm Chain and 6mm Thickness, Ideal for Securing Bikes, Durable and Weatherproof Design,Outdoor and Indoor Use

• Sturdy Alloy Locking Mechanism: The lock is equipped with an alloy lock catch made from top - grade alloy steel. This construction endows it with remarkable strength and durability, making it highly resistant to tampering and offering enhanced protection for your bike. • Smooth - Operating ABS Lock Cylinder: The lock's cylinder is crafted from ABS material, enabling smooth and seamless password dialing. The dials turn effortlessly, free from any jamming or resistance, allowing for quick and convenient access to your bike while ensuring long - lasting performance. • Robust and Weather - Resistant Chain: Featuring a 6mm - thick alloy chain with a length of 90cm, this lock is built to endure tough conditions. The chain is enveloped in a high - quality polyester sleeve that is abrasion - resistant, waterproof, and rust - proof, safeguarding both the chain and your bike from damage. • High - Security Password System: With an astonishing 100,000 password combinations, the lock provides a high level of security. The five - group password system greatly ups the ante on unauthorized access difficulty. It would take around 5000 minutes to crack, ensuring your bike remains safe. • User - Friendly Design Features: Designed with user convenience at its core, this lock does away with the need for keys thanks to its password dial. It's also easy to install and use, suitable for both indoor and outdoor scenarios, presenting a practical security solution for cyclists.