Bicycle U-Lock With 2 Keys, Heavy Duty High Security Anti-Theft Lock, Product Details Waterproof, Rustproof, High Security, Anti-theft U-Lock for Road Riding Mountain Biking Bicycle Lock ??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 !! Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.