- 3.5'' x 2.25''/9 cm x 5.75 cm (cylinder) - 3''/7.5 cm (pump diameter) - ''Attention Head Pumpers.this is the real deal!'' -American Pumpers Association - Compact seamless cylinder for intense vacuum - EZ grip squeeze trigger handle - Removable tapered donut for maximum seal - Flexible non-crimping hose - Push button release valve - SAN (cylinder) ABS (handle, release valve) ABS with Silver Plating (handle grip) Phthalate-Free PVC (hose)