Ride Worry-Free – Keep your bike safe from theft with this complete lock set, including a 4×8-inch U-shaped lock, 4ft security steel cable, mount bracket, and 2 keys. Heavy-Duty Protection – Unpickable 17mm steel U-lock with a silicone sleeve, hardened high-performance alloy steel, anti-theft that resists cutting, bolt-cutters, and pry bars. Weatherproof and Flexible – 4ft steel cable and vinyl coating offer greater locking flexibility and protect from corrosion, rust, and dust for any weather condition. Extra Protection – 12mm steel locking cable can be wrapped around poles, railings, and bike racks for an added layer of security. Satisfaction Guaranteed – This bike lock set has been designed to keep you riding smoothly and safely. Our 24/7 support team is ready to assist you with any questions or concerns.