Lutuo Bike U Lock With 2 Keys Heavy Duty Anti Theft Bike Locks, 13.7Mm Carbon Product Features ??STRONG AND ANTI-THEFT?: LuTuo bicycle u-lock is made of 13.7mm thickened A3 carbon steel with multiple heat treatment process to increase the hardness and strength, anti-cutting, anti-sawing and anti-smashing, providing excellent protection for your bicycle. Note: To ensure the absolute safety of your bicycle, please park it in a safe place. ??LONGER DESIGN?: Unlike smaller u shape locks on the market, our u bike locks are made longer and larger, with an inner size of 9.6inch long and 4.1inch wide, the high security u lock for bicycle can easily lock whether it is a motorcycle, or a mountain bike, road bike, scooter, or electric bike, and can also lock two bikes at the same time. ??EASY TO INSTALL?: The included bracket can easily install the bike D lock on the bike, easy to carry (Note: this cycle U lock is double-open, please be careful to hold the ends of the lock when unlocking, so as not to fall off) ??TWO KEYS?: Bicycle locks heavy duty comes with two copper keys for added convenience, you can keep one key at home as a backup in case of inadvertent loss. Zinc alloy lock core structure precision, more anti-theft, dust cover plays a role in protecting the lock core, waterproof and dustproof. ??AFTER-SALE SERVICE?: 1OO% warranty, we offer the best guarantee to the market, you will like this ulock bike lock from us, it is a safe companion for your bike, please contact us in time if you have any questions. 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!