Erection pump with flanged base for secure seal. Soft and stretchy removable donut. Easy squeeze bulb with quick air release valve. Stretchy and comfortable extender. Adds 2 inches to length. Textured ribbing inside and out. Discreetly enhances both length and girth. Super stretchy, strong and pliable cage enhancer. Added scrotum ring for support and secure placement. 2 sizes of stretchy erection enhancer rings. Fits securely on the base of erection pump cylinders. Slides easily from cylinder to penis to maintain erection. PS cylinder, Phthalate free PVC hose, bulb, ABS plastic release valve, Thermoplastic Elastomers TPE donut, Thermoplastic Rubber TPR extender, enhancer, Silicone rings. From CalExotics.