A breakthrough in penis enhancement! The 7" reusable GEE is made of 100% Silicone and designed for men to use with or without an erection. The base of the extension squeezes the base of your cock like a cockring, allowing a harder erection that lasts longer. Based on a unique system, positive air pressure is manually squeezed from the chamber creating a vacuum. This seals the extension onto the penis in three areas along the penis shaft for a snug, yet comfortable fit. Goes on easy and stays on until you're done!