Call him Ringmaster - he's here to pump.. you up. This beefy silicone ring partners with your penis pump to take your erection to the next level. Once Ringmaster slides down to the base, he'll keep the blood flowin' and the good times rollin'. This sly sidekick features a handy pull-tab so he's easy to apply after pumping and simple to remove when the fun's done. orget diamonds, this ring is a pump's best friend. Ringmaster - making erections more electrifying since 2019.