Bicycle U-Lock With 2 Keys, Heavy Duty High Security Anti-Theft Lock, Waterproof, Rustproof, High Security, Anti-theft U-Lock for Road Riding Mountain Biking Bicycle Lock Product Features ??High Quality, Durable And Strong?- The bicycle U-lock is made of heavy duty's 14mm thicken carbon steel and zinc alloy lock core. It has high security and cut resistance, reliable quality, strong, durable, not easy to damage and aging, and long service life, ensuring provide your bicycle more secure protection. ??Security, Anti-theft?- It is made of high-quality hardened carbon steel with a thickness of 14mm. Lock bicycle is resistant to cutting, sawing and prying, so it has excellent safety and can effectively prevent theft. The complex structure of the zinc alloy lock core and the serpentine slot copper key are combined, and it is not easy to open when the lock is closed, which further improves the anti-theft performance and ensures the safety of your property. ??Waterproof Dustproof ?- The outer layer of the u locks for bicycles is covered by 2mm thick PVC material, can effectively waterproof, dustproof and anti-scratches, avoid rainwater penetration and prevent the lock core from rusting. The protective layer can ensure that the lock is prevented from being worn during use, so as to extend the service life of the lock, and it can also protect the bicycle from scratches. ??Easy To Use Carry ?- It adopts unilateral unlocking design, convenient to quickly open and close the bicycle U-lock. Easy to install, the security lock for bicycle can be fixed to the bicycle seat tube using the attached mounting bracket, allows you to quickly store or remove the bicycle U-lock, easy to use at any time, and don?t worry about losing it. ??Widely Application?- This lock for bikes outside can be applied to all types of bicycles, and can be widely used in bicycles, office doors, warehouses, gates, fences and store doors. With our bicycle U-lock, you can get maximum security. Please note: do not lose the key, otherwise the lock will not be able to be opened !! Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!