This item is manufactured with premium material. It fit on any standard size existing tire stem. and can also visually alerts you when the tire pressure is low to help avoid premature tire wear or blowouts from under-inflated tires.It's easy to use and install with long service life. The precise design will ensure its practicability in the work of highly performance.<br>Features<br>- Color: Shown in the pictures.<br>- Material: Chromed Metal.<br>- Size: Approx. 2.3 * 1 * 2.3cm/ 0.9 * 0.4 * 0.9 inch(L*W*H).<br>- Round Style: 36PSI.<br>- for durable and long-lasting use.<br>- Fit on any standard size existing tire stem.<br>- Visually alerts you when the tire pressure is low to help avoid premature tire wear or blowouts from under-inflated tires.<br>Indication<br>- Green shows that tire pressure is normal.<br>- Yellow shows that the pressure is down about 5 pounds.<br>- Red alerts you that the pressure is down by at least 10 pounds.<br>Installation<br>- Determine the correct tire pressure for your tires.<br>- Inflate tire to correct pressure.<br>- Install This new pressure tight.<br>- Simply look at the color to know if your tire is low or normal.