Our Fantasy C-Ringz are among the best sex toys for couples because they stimulate men and women simultaneously. By limiting blood flow, our rings enhance his penis size and endurance while they stimulate her clit and help her orgasm faster. With the incredible Infinity Ring you'll perform like a pro and enjoy the kind of sex you've always dreamed of. This ergonomic erection enhancer wraps snug around your penis and testicles to prolong the fun for both of you! It puts a stop to those embarrassing midway letdowns and creates rock hard erections guaranteeing that you will always be ready for action! The phthalate-free, medical grade Elite Silicone can be enjoyed in full confidence with any water-based lube. The silky smooth silicone ring fits comfortably and easily stretches to fit most sizes. With two strategically placed Easy-Grip® tabs on both rings, the Infinity Ring goes on easy and comes off even easier. The top ring wraps snug around the penis while the bottom ring wraps around the testicles resulting in bigger, thicker, and longer lasting erections. This simple, dual-action ring is your ultimate wingman '“ take it with you wherever you go and you'll always be ready for action! C Ring Diameter: 1.4" (3.5 cm)  Ball Ring Diameter: 1.25" (3.1 cm)