Via Velo Bike Lock Heavy Duty Bicycle U-Lock, 14 Mm Shackle, And 10 Mm X 1 Point ?? DURABLE ALL-WEATHER PROTECTION ? Via Velo bike U-lock with hexagonal PVC cover resists corrosion from water, dust and dirt to prolong the life of your lock. All-weather performance means peace of mind and better security ? ?? EASY AND STRONG TO LOCK YOUR BIKE ? The bike lock with thickness(including rubber casing):14mm,9.84 in (250mm) x 5.51 in (140mm) U shack to lock and go! Locking your bike and your wheels with 10mm x 180cm cable, fast and easy with our quick, no-hassle system. Great bike safety tool ?? AMAZING CONVENIENCE AND SECURITY ? 2 keys for convenience! The bike U-lock comes with 2 keys. One of them you can take and use in daily life and the other you can leave at home in case the trouble when you lose one carelessly ?? SIMPLY INSTALLING BRACKET ON YOUR BIKE ? Convenient high-quality mounting bracket means your lock goes with you, Our bracket is suitable for bike tube:20-42mm. Pls refer to our picture to install the bracket Value for your money ?? WARRANTY AND CUSTOMER SERVICE: 3-year warranty applies to U lock for US, CA, UK, EU Cyclists, 90-day money back policy, 24-hour online customer service. If you are not satisfied with it, you get a full refund unconditionally. Rest assured