Description: 【Package Includes】Set contains 2 keys and 2 lock cores, providing you with a complete set for immediate installation and use. 【Durable Material】Car Roof rack cross bars locks cylinder and keys are made of zinc alloy, ensuring durability and longevity, longer service life. 【Great Replacement】 If the lock cylinder in your rack is damaged or rusted, there will be a security risk. A new lock cylinder is needed. This lock kits lets you replace new locks cylinder, add security to your rack system and cargo. 【Compatibility】The lock cylinders perfectly used for car roof rack, rooftop cargo carrier, car luggage rack crossbar, automotive cargo crossbar, etc. 【Easy Installation】This replacement lock core and key for car racks system can be installed directly in a few minutes, quick installation and enhancing the security and functionality of your vehicles. Specification: Material: Zinc Alloy Size Chart: Key: 1.6cmx3.1cm/0.63inchx1.22inch Package Includes: 2 Pieces Lock Cores 2 Pieces Keys Note: Please allow slightly errors due to manual measurement and different monitors.