These service caps are designed to fit securely on the ' ports, providing a tight seal that prevents leaks. They are ideal for use after servicing or recharging the , ensuring that the ports remain clean . To install, screw the caps onto the service ports and check for a snug fit. This helps to maintain the performance and efficiency of the system. Features -Color:Assorted Color -Material:ABS -Size:2.00X1.80X1.80cm/0.79X0.71X0.71in -Robust construction: made with durable materials, these caps are designed to be robust and dependable, ensuring they last through extensive use - : specifically tailored for automotive repairs, these caps ensure an with original parts, facilitating easy and accurate installation -Comprehensive protection: the caps provide effective protection for the system' ports and valves, preventing dust and debris from causing damage -Improved efficiency: the service exchange system helps improve repair efficiency, reducing the required for maintenance tasks -Multifunctional use: these caps are not only suitable for repairs but also serve as excellent upgrades to enhance the performance and efficiency of your car's system Package list: 12 valve covers