This item is a 400cc motorcycle lock, used 5 or 6 times. At home, it's long enough to secure the tires to a pillar. How about using it to prevent theft of your bicycle or motorcycle? 【Extra Thick & Heavy Duty】22mm diameter extra-thick wire, 10mm x PVC coating 12mm x nylon cover protects your precious vehicle from criminals. We use even thicker, ultra-thick wire to pursue security, giving our customers more peace of mind. 【Copper Cylinder & Keys】Equipped with a copper key cylinder that automatically springs back. Excellent rust/water resistance. Also comes with 2 keys, usable on both sides. Difficult to duplicate and resistant to wear. *Note: When unlocking, do not twist forcefully. Rotate the key 45 degrees clockwise. Before inserting the key, check the keyhole for any foreign objects. 【Dust-Proof Shutter Design】A dust-proof shutter is designed to prevent dust, sand, and rainwater from entering the key cylinder area, which can make it difficult to open due to clogging. 【Ultimate Anti-Theft】The head is specially designed to be larger and more robust. The 1200mm length is applicable to a wide range of items, including motorcycles, scooters, bicycles, and office doors!