Sinclair Institue Erection Ring Set

Sinclair Institute Erection Ring Set. Four stretchy TPR erection rings in a variety of sizes and strengths. Each of these rings strengthen and maintains weak erections and restores ability for intercourse. Each ring is designed with easy-to-grip, easy-to-use handles, allowing quick on/off in seconds. These erections rings can be used with the Sinclair Institute Select ENDOW Vacuum Pump System or similar penis pumps. Phalate-free. Latex-free. PVC-free TPR.