Pocket Pump and Gauge. A compact pump and gauge all in one. Inflation pump with gauge combines the unique design of the original Pocket Pump with the convenience of the Pocket Pressure Gauge. The pump features include an air release valve for recommended deflating of balls after each use. A flexible hose reduces strain on ball valve, to cut down on broken needles. Also features a gauge dial. Capable of pumping up to 13 PSI.