The Fox High-Pressure Shock Pump provides a quick and reliable way to maintain your shock and seat post-air pressure. Max. pressure 350PSI covers all shocks (350PSI is the max psi on DPS and DPX2 Durable stainless swivel pump head (UP-SA) allows for pump to access shocks where linkages would get in the way with a traditional pump head 6063 aluminum barrel and handle Micro-adjust 2-3 PSI air-bleeder Foldable hose