This product can be used to inflate the gas chamber on dampers that use a compressed rubber pellet type gas valve. These include Fox Float series shocks, Cane Creek shocks, Ohlins shocks, etc. 
 
A shock pump or nitrogen tank can be connected to this via the schrader valve on this assembly. It comes with a total of 3 needles (2 spares). 
 
THE MAXIMUM PRESSURE RATING OF THIS PRODUCT IS 200 PSI.