This product is an auxiliary tool for measuring tire pressure. The use can directly observe the color change inside the cap to assess the adequacy of tire pressure after fixing the tire caps onto the tire air valve.
Features:
* Color: Silver
* Material: Stainless Steel
* Quantity: 4pcs in 1 pack
* Simply install on the air valve to display status via easy to recognize colors
* Tire Pressure Warning:
Green Display: pressure normal
Yellow Display: pressure warning,need to inflate
Red Display: pressure dangerous,please check and inflate
* Size (HxD): 2.3 x 1.1cm / 0.91 x 0.43inch
Package Includes:
4 x Tire Valve Caps
