The AEV EZ Tire Deflator has a yellow rubber guard which protects the easy to read dial that displays air pressure from 0-60 PSI in 1 PSI increments. The quality Nylon braided pressure hose design ensures accuracy and is not affected by changes in temperature, humidity or altitude. AEV’s EZ Deflator allows you to quickly and safely remove the valve stem core for rapid tire deflation. A sliding collar and turn dial help you to stop the airflow or to check your air pressure. A convenient storage pouch is included to keep your EZ Deflator safe when not in use.