Item Name: Car Accessories Air Measurement Tire Tester Tyre Pressure Gauge Diagnostic Tool. Size: 10*4.8*2.3cm100% Brand new and high qualityMaterial: stainless steel + plasticWeight: Approx 116gMeasuring Range: 0-100PSICompact and easy to read tyre pressure gaugeAngled chuck for easier connection to tyre valveGauge will hold reading until reset button is pressedHow to use:1. Screw off the cap of tire valve.2. Screw the copper nipple of the tire gauge into the tire valve and screw down3. The tire gauge will show your tire pressure4. If the tire pressure is too low, please inflate the tire and if the tire pressure is too high, please open the vent valve to lower the tire pressure.5. After measuring the tire pressure, please screw off the copper nipple, close the vent valve, make the pointer back to zero, and screw down the cap of tire valve.Package Included: 1 * Tyre Pressure GaugeNote:Please allow slight manual measurement deviation for the data. Thank for your understanding. *