Victor's 32 PSI tire pressure monitoring valve caps reduce tire wear and save you money. Maintaining your tire's air pressure is now easier than ever with the three color alert system featured on these valve caps. Know your inflation situation at a glance - green indicates fully inflated tires at 32 PSI, yellow shows slight air loss, and red indicates significant air loss and that it is time to inflate. Stay safe and increase your vehicle's fuel economy by driving on properly inflated tires. From fashion to function, Bell Automotive offers a wide variety of automotive accessories to meet every need. Staying charged on the go, keeping organized, or just looking for a little fun, Bell Automotive accessories help you make your ride your own. Enjoy your ride.