Precision Pump Intermediate take serious pumping to a whole new level! American Pumper's Association. High quality, heavy duty pump with over sized flanged cylinder with universal incremental measurements. EZ-Squeeze trigger handle. Push button release valve. Tapered Silicone secure fit donut. Flexible non-crimping air hose.Safe and pure for body and pleasure made using phthalate free materials SAN cylinder, ABS plastic handle, ABS plastic with silver plating handle grip, Silicone donut, POM release valve, PVC hose.