The Rockbros Anti-Theft Bicycle Cable Lock Is Rustproof, Portable, And Comes In PORTABLE. The bike cable lock is lightweight and easy to carry. It can easily fit in your bag or attach to your bike frame, providing a convenient and reliable way to secure your bike wherever you go. SECURITY LOCK. Made of 7 Zinc alloy lock cylinder, bike lock provides security for your bike. Bike lock features sturdy zinc alloy lock core that is resistant to cutting, drilling, and prying, ensuring that your bike stays safe. HUMANIZED DESIGN: The bicycle lock is simple to use and can be locked with a single press. Besides, the bike lock supports multi-section interlocking, and multiple locks can be combined into a longer lock. VERSATILE: The bike cable lock can be used to secure not only bikes but also other outdoor gear, such as gates, fences, grills and more. Bike locks make securing and unlocking your bike a breeze, with one-touch locking allowing you to lock your bike quickly