Olinton AT2019 Universal Tire Pressure Warning Monitoring Indicator Valve Caps - Silver (4 PCS)
Brand Olinton Model AT2019 Quantity 4 piece(s) Material Stainless steel Color Silver Compatible Make Universal Diameter 7 mm Thread 0.8 mm Function Simply install on the air valve to display status via easy to recognize colors; Green display = pressure normal; Yellow display = pressure warning need to inflate; Red display = pressure dangerous please check and inflate; Convenient to use Packing List 4 x Indicator valve caps