You could eyeball your car tires and try to guess if they’re under-inflated, or you could replace their caps with these tiny sensor valves. Once you have the $2 set installed, you’ll be able to glance at your tires, and tell instantly whether they’re fully inflated (green), a little flat (yellow), or very flat (red). [Tire Pressure Monitoring Valve Cap Set, $2]


Commerce Content is independent of Editorial and Advertising, and if you buy something through our posts, we may get a small share of the sale. Click here to learn more. We want your feedback.Send deal submissions to Deals@Gawker and all other inquiries to Shane@Gawker

Send deal submissions to Deals@Gawker and all other inquiries to Shane@Gawker