Adonis Head Exciter comes with an advanced design for maximum satisfaction. EZ grip pump handle. Compact, seamless cylinder for intense vacuum. Removable sleeve provides added stimulation or may be used independently as a masturbator. Tapered Silicone donut for maximum suction. Flexible non-crimping hose. Quick release purge valve. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials: SAN cylinder, ABS plastic handle, release valve, PVC hose, Thermoplastic Rubber TPR sleeve, Silicone donut. Cylinder measures 3.5 inches long by 2 inches wide. Sleeve measures 5.25 inches long by 1.75 inches wide. Donut measures 2.5 inches long by 2 inches wide.