Features: Ensures your vehicle's air conditioning systems remain sealed and secure with our r134a caps set, featuring both 13mm and 16mm sizes. Crafted from plastic with integrated rubber seals, these high quality air conditioning caps are designed to withstand pressure and resist corrosion for long lasting protection. For professional auto mechanics and technicians specializing in car air conditioning repair and maintenance, as well as diyer enthusiasts seeking parts. Whether you're replacing worn out caps in a repair shop or performing routine maintenance at home, this set provide the necessary component to keep your air conditioning systems functioning efficiently. With five high side and five low side caps, this set not only ensures a perfect fit for your r134a air conditioning ports but also helps you easily identify the service side during any air conditioning systems check up or refills. Specifications: Component:Plastic Package Includes: 10pcs Air Conditioning Caps note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.