Features:*High-Quality Material: Made of high-quality material, wear-resistant, not easy to break, durable and can be used for a long time.*Waterproof: The bike lock is waterproof and can continue to work in rainy-days without rusting.*Security and anti-theft: Attached to the discs brake of the bike, it is difficult to remove without a key, and has excellent anti-theft function.*Heat-treated hardened alloy steel is resistant to violence: Heat-treated hardened steel is much harder than ordinary steel, and its ability to withstand violence and shear is greatly improved.*Wide range of application: This lock is widely used and suitable for motorcycles, bike, mountain bikes or other vehicles.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementMaterial: alloy steelSize: 45*33mmLock cylinder diameter: 5mmDiscs brake hole diameter 5.5mm