ROCKBROS U-lock, Bicycle Key, Bicycle Lock, Key Type, Bike Lock,

• [Ultra-sturdy U-lock] The diameter of the U-lock is approximately 14 mm (approximately 22 mm in diameter including the cover) and is made of heat-treated hardened alloy steel, making it extremely sturdy!Improved strength, hardness, impact resistance, abrasion resistance, corrosion resistance, durability, etc.Furthermore, the zinc alloy lock cylinder has high strength and hardness, greatly improving security performance!Bicycle keys are hard to cut, even with a grinder!It is resistant to 12-ton rebar cutters, hammers, and electric drills.Prevent theft with this sturdy lock when parking your bicycle for long periods of time or storing it outdoors! • [Silicone cover included] Covered with a silicone cover, the bicycle lock feels good to the touch and does not deteriorate due to metal wear.Even if you hang it on the steering wheel while moving, you can rest assured that the steering wheel will not be damaged and your precious car body will not be damaged.(The key body is heavy, so please be careful not to hit it with the car body.) In addition, there is a silicone cover in the winter, so you can avoid the tingling feeling caused by the cold even if you open and close the key with your bare hands. • [Increased security] A wave key with high security is included and has a special groove, so it cannot be easily unlocked with anything other than this key, which substantially reduces the chance of malicious unlocking.Three keys are provided, so you don't have to worry about losing your key.Bike locks are a type that locks and unlocks at both ends, making them difficult to pick and have high security performance. • [Easy to carry] It's a very sturdy key, so it's a little heavy, but it comes with a special bracket for mounting on the car body, so you can fix it to your bicycle's seat post and easily carry it when you move!It can be used not only for various bicycles such as road bikes, cross bikes, and MTBs, but also for motorcycles, electric bicycles, doors, etc. • [Product Specifications & Quality Assurance] Diameter: 14mm Diameter including cover: 22mm Weight: 900g Color: Black/Black Red Our store has a one-year warranty, so if you have any problems with the product, please feel free to contact us.We will handle services such as refunds, returns, and product exchanges.