Description: Brand: ROCKBROS Country of origin: China Product type: U-bike lock Model: 32110001001 Size: approx. 205mm*180mm Diameter: 18mm Weight: approx. 1193g Colour: Black Material: Alloy steel + zinc alloy + silica gel Compatible with: All bikes Special features: Portable, Rustproof, High security, Robust, With 2 keys Special Features: Anti-Pick and Anti-Theft: High-strength heat-treated steel is used to improve the hardness and anti-theft performance of the U-lock. Sturdy zinc alloy lock cylinder resists dust and rust. The thickened and hardened lock has a diameter of approximately 18 mm, so it can withstand cutting, drilling and hammering. Even hydraulic pliers weighing up to 12 tons can't cut the unlocking lock. Compatibility: The exterior of the U-locks and cables are wrapped in soft silicone for a more comfortable feel and to prevent scratches to the paintwork when locking. Our locks are very suitable for bicycles, motorcycles, e-bikes, helmets and more. You can lock your bike to fences, poles, etc. Comes with 2 keys: the serpentine grooves on the keys are varied and difficult to duplicate. In addition, the double locking method is more secure and reliable.