- 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)