Shock Inflation Toolshock Inflator And Gauge, 0-300 Psi, Mechanical, Analog, Black Face, Eachair Inlet Side Does Not Have A Valve Stem, It Does Work With Normal Air Hose Ends, Chuck Needs To Be Held At A Slight Angle. The Small Extra Fitting Is For A Presta Style Valve Found In Some Applications, Not Commonly Needed.Stylenitrogengauge Includedyesdigital / Analog Gaugeanalogprimary Readingpsisecondary Readingbargauge Minimum Range0 Psigauge Maximum Range300 Psigauge Increments10 Psigauge Face Colorcarbon Fibergauge Bezel Colorsilverpointer Coloryellow360 Degree Rotationyescase Includedyesmaterialaluminumcolorblackfinishanodizedquantityeach