******************FREE EXTRA NEEDLE************************* THIS Nitrogen fill Gauge allows accurate measurement, and regulation of shock pressure for most racing shocks which have self-sealing rubber valves. It uses a GENUINE Motion Pro nitrogen needle (08-0075). You simply add nitrogen as needed to get the pressure you want from your nitrogen tank. Gauge reads 0-300psi If you need a higher reading gauge let me know Contents 300psi dry gauge (I have the same tool with liquid filled gauge in a another auction if interested) Brass tee with schrader valve Motion pro needle kit with instructions Free extra needle i also have 5 packs of extra needles in another auction