About the Product: The unique, patented design of the E-Z deflator allows for removal of the valve core for rapid tire deflation, while also providing accurate pressure reading via the simple movement of a sliding valve. Features: – Corrosion Resistant Brass/Stainless Deflator Tool – Quality Bronze Bourdon Tube Gauge Design Ensures Accuracy is Not Affected by Changes in Temperature, Humidity or Altitude – Fully Geared, Solid Brass Precision Movement – Protective Rubber Gauge Guard – Easy to Read Dial with One PSI Increments – Thoroughly Designed and Tested to Ensure Accuracy – Includes Protective Canvas Pouch and Instruction Sheet