Description: 【Product List】: 5 red caps for high side ports 16mm, 5 blue caps for low side ports 13mm. 【Material】: Air Conditioning System Charging Port Caps are made of quality PP and rubber material, strong, wear resistant, and can be used for a long time. 【Applicable】: A/C Services Caps are suitable for most vehicles with A/C system, suitable for replacement and maintenance of car air conditioners.Not Fit for Toyota Rav4 2014. 【Function】: A/C Services Caps are Suitable for car air conditioners maintenance, this dust cover has no internal threads, only a dustproof function. 【Easy to use】: A/C Services Caps are simple in design, easy to use, have no complicated steps, can be installed directly, quick and convenient. Specification: Material: PP, rubber Size Chart: Red Caps Are For High Side Ports 16mm/0.63inch Blue Caps Are For Low Side Ports 13mm/0.51inch Package Includes: 10 A/C System Charging Port Caps(3 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.