1. Improved secure protection The bicycle shackle lock uses a 15 mm high performance steel shackle to resist cut and lever attacks. It is a reliable choice for securing bicycles, motorcycles, gates, fences, and similar applications. The strong grip and robust construction deliver dependable security. 2. Durable construction The lock features an alloy steel body with a PVC layer to withstand year round use. It is easy to open, close and lock, and the included strap aids in convenient storage when not in use. 3. Easy to use Supplied with a U-lock and two keys: one for daily transportation and a spare for home, so you won’t be left without access. The practical mounting bracket allows you to attach the lock to your bike or stand for easy storage when not in use. 4. Efficient and practical Attach the lock to your bike with the mounting bracket for quick, convenient use. The PVC cover helps extend the life of the lock and protects your bike from scratches. The design supports easy storage while riding. Use scenarios - Park and secure a bicycle at a shop, school, or home with the sturdy 15 mm shackle for strong protection against tampering. - Lock a motorcycle, gate, or fence to deter theft, leveraging the durable alloy steel construction and PVC layer. - Commute or ride with peace of mind, using the two-key system and mounting bracket to store the lock securely on the bike when not in use.