Fits on any standard size existing tire valve stem. Visually alerts you when the tire pressure is low to help avoid premature tire wear or blowouts from under-inflated tires.
Indication:
Green shows that tire pressure is normal
Yellow shows that the pressure is down about 5 pounds
Red alerts you that the pressure is down by at least 10 pounds
Installation and Directions:
1.Inflate tire to correct pressure
2. Install the new pressure cap tight
3. Simply look at the color to know if your tire is low or normal
