The STEELMAN 422113 5-50 PSI Polished Steel Pencil Air Gauge will help you get the most out of not just your tires but your car or truck too. When properly inflated your tires can last longer and even save you money at the pump by helping your car get better fuel mileage. This handy, pocket-sized gauge has a lightweight and sturdy polished steel housing to prevent corrosion and has a deflator knob on the back to easily lower tire pressure if you accidentally overinflate them. The bright white, ABS plastic reader bar has high contrast black lettering to make it easy to read. Able to quickly and accurately read tire pressures from 5 to 50 PSI this tool is rated to be accurate to +/-2 PSI.