The MAXIMUS potency ring made of medical-grade silicone increa-ses sensitivity thanks to its elastic material and ergonomical design and also helps achieve a more intense erection. They can also be used in the case of erectile dysfunction (blood stasis disorder in the penis) to improve stiffening and to maintain erectile function. Pleaseobserve the enclosed instructions for use! Perfect comfort through ergonomic design Easy to remove through grips Also for usage with vacuum pumps Medical grade TPE BPA-free (Bisphenol A)  Sizes: small, medium, large (single and set of 3) Made with Love in Germany Prolongs the erection and delays ejaculation