Visual tire cap pressure gauge

instructions:1. unscrew existing valve cap.2. set tyre pressure to manufacturer's recommendation.( tyre must be cold )3. screw indicator cap onto valve by hand.4. check regularly to monitor pressure.5. if red indicator is above the green,yourtyre has lost pressure.6. re-inflatee the tyre to correct pressure.7. keep cap clean to make checking easy.Notice: on motorcycles, please check wheel rotates freely after fitting

Visual tire cap pressure gauge