The MAXIMUS potency ring, made of medical-grade silicone, increases sensitivity thanks to its elastic material and ergonomic design, contributing to a more intense erection. It can also be used to improve erections and maintain erectile function in cases of erectile dysfunction (impaired blood flow to the penis). Please refer to the enclosed instructions for use! Perfect comfort through ergonomic design Easily removable thanks to handles Also suitable for use with vacuum pumps Medical-grade TPE BPA-free (Bisphenol A) Sizes: small, medium, large (single and 3-piece set) Made with Love in Germany It prolongs erection and delays ejaculation.