CalExotics Magic C-Rings are a set of three comfortable and stretchy erection enhancement rings designed to support erection stamina. Made from soft and hygienically superior TPR, these transparent rings feature heart and star shaped pleasure nodules that enhance sensitivity. Each ring offers a different diameter: the Heart Ring measures 0.75" (2cm), the Nubbie Ring measures 0.85" (2cm), and the Star Ring measures 1" (3cm). These reusable rings are perfect for users of all experience levels, making them suitable for both solo exploration and couples' play. To use, simply select a ring and slide it to the base of the erect penis for a secure fit. For optimal comfort, it is recommended to use a quality lubricant. Country of origin: China.