Bicycle U Lock, 16Mm Shackle, And 4 Feet, 6 Feet Of Security Cable With Sturdy Product Features STURDY DURABLE: This bike lock is made of 16mm/0.63inch(including 0.1inch environmentally silicone cover) alloy steel which is cutting-resistant, leveraging-resistant, and drill-resistant. The bicycle lock will provide your bike with more safety. SAFER: The lock cylinder of the bike lock is made by C grade pure copper blade, which has a precise structure to prevent technical opening. The bike u lock comes with 2 rust-resistant copper keys that have complex serpentine slots, it will be safer. CONVENIENT USE: This bike lock comes with a 4feet double looped ends steel cable which is coated with PVC covering, and the whole diameter of the cable is 0.48inch. It will provide your bike with greater locking flexibility and better protection. PORTABLE SIZE: The size of the bike lock is 7.68inch*4.9inch. Comes with a mounting bracket that is suitable for all circular tripod in diameter ?30mm. With the portable size, you can put the bike u lock into your bag or mount it on the frame of your bike. EASY INSTALLATION: The mounting bracket holder is easy to install which enables you to store your bike lock quickly when out on a ride. The silicone cover of u lock will protect your bike from scratches. And it will prolong the life of your u lock. 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!