Features:Color: BlackLength: 11.5cmDiameter: 5.5cmDurable construction, rubber jacket and copper headHigh-quality precision movement, accurate measurementProduct Specifications:Accuracy: 2 PSIMeasuring Range: 0~100 PSIMaterial: Stainle Steel; Premium RubberWeight: 3.88oz/ 110gDial Diameter: 1.5"Package includes:1Pcs x Tire Preure GaugeMEASURE PRESSURE ACCURATELY - Accurate to (+/- 2%) - all our gauges are rigorously tested and calibrated to American Standard ANSI B40.1 Grade B, ensuring quick and precise tire preure readings. Perfect for your car or motorcycle.ERGONOMIC DESIGN - Heavy duty steel & bra body feels solid in the hand and is built to last rugged rubber protector, providing extra protection from accidental drops and everyday storage.EASY TO USE. 360-Degree Swivel Chuck for easy valve acce, preure reset button to reset readings, and built-in air bleeder valve to reduce preure in overinflated tires.PORTABLE WIDELY USED - Compact size features an easy-to-read 1.5" dial (psi), suitable for most cars, trucks, SUVs, motorcycles, bikes, spare tires, or RVs.NO BATTERIES REQUIRED - This top-rated, profeional tire monitoring system is easy to use and is reliable in all weather conditions. A perfect acceory for your car, motorcycle, truck, bike, SUV, RV or ATV - it will not let you down.Operation Steps:1. Make sure the tire is cold before you start.2. Pre the 45 extended head against your tire's nozzle till the pointer stops moving.3. Hold the tire preure gauge at eye level and get the reading of the preure.4. Check the manufacturer's recommended PSI (normally it can be found on the side of the tire) and make sure the preure5. Pre the reset button on the gauge and put the nozzle cap back on the tire's nozzle when you finish measuring.