?Package Includes?You will get 1*bike ulock, 1*4ft flex cable, 1*mounting bracket and 2*keys, it is very easy to install according to our instructions. If you have any questions, please contact us and we will get back within 24 hours. ?Portable Size?The size of the u lock for bicycle is 7.9 in * 5.1 in, which is the same size of a 9.7in tablet and is convenient to carry. In addition, come with a mounting bracket that is suitable for all-round tripods with a diameter = of 1.18in (30mm). ?Convenient to Lock?The bike u-lock heavy-duty comes with 4 feet/0.48in steel cable which is coated with PVC covering to provide a greater locking method to protect your bike, suitable for bicycles, motorcycles, electric bike, scooters. ?Sturdy and Durable?This bicycle lock is made of 16mm/0.63 inch (including 0.1 inches friendly silicone sleeve) hardened high-performance alloy steel, which can resist cutting and lever attacks. Our bike d lock will provide more security for your bike. ?Double-opening Head?Our DINOKA heavy duty bicycle u lock is a double-opening head, The thief needs to break the bike locks on both sides at the same time to open it, which is safer than a single-opening head ulock. The lock cylinder of the bicycle is made of C-grade pure copper blades and has a precise structure to prevent various technologies from opening. In addition, the bike u lock is equipped with 2 rust-proof copper keys with a complex snake-shaped slot, which is safer to use.Material: Alloy Steel, Silicone, Copper, Polyvinyl Chloride. Item Dimensions LxWxH: 7 x 5 x 2 inches. Lock Type: Combination Lock. Special Feature: Heavy Duty. Brand: DINOKA. Date First Available: April 10, 2019. Best Sellers Rank: #7,112 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 1,270 ratings 4.5 out of 5 stars. : B07QK8C9TV. Batteries Required?: ?No. Batteries Included?: ?No. Special Features: ?Heavy Duty. Item Package Quantity: ?1. Finish: ?Painted. Size: ?Small. Product Dimensions: ?7 x 5 x 2 inches. Item Weight: ?2.66 pounds. Part Number: ?U Lock. Manufacturer: ?FRIDIROU. Shape: ?U Shape. Included Components: ?Bike u lock with keys and cable. Finish Type: ?Painted. Number Of Pieces: ?1. Color: ?White. Style: ?Bicycle Locks Heavy Duty Anti Theft with Keys and Cable. Recommended Uses For Product: ?Security. Material: ?Alloy Steel, Silicone, Copper, Polyvinyl Chloride. Item Dimensions LxWxH: ?7 x 5 x 2 inches. Lock Type: ?Combination Lock. Special Feature: ?Heavy Duty. Brand: ?DINOKA.