4 Lock Cores with 3 Keys Replacement Cylinder for Bike Racks Roof Cargo Boxes Car Accessories

【Common Compatibility】Fits most bike racks, roof racks, ski racks, cargo boxes, crossbars, towers and kayak carriers. Includes 4 lock cylinders, 2 keys and 1 master key for easy rekeying 【Single Key Convenience】Use one key for all your racks and accessories - perfect for owners of multiple roof rack systems who want simplified key management 【Easy Installation】Simple replacement process: unlock existing cylinder with included master key, remove old unit and install new secure lock cylinder in minutes 【Enhanced Security】Replace worn or damaged lock cylinders to prevent theft and ensure your valuable equipment remains secure during transport and storage 【Stable Construction】Made with aluminum alloy housing and brass inner core for excellent corrosion resistance and long-lasting security performance