3 Ring Sets include the following: Mixed: #14, #17, #20; Medium: #14, #15, #16; Large: #17, #18, #19; Extra Large: #20, #21, #22. Imagine if a finger ring was only available in three different sizes that corresponded to the circumference of a 10-cent, 25-cent, and dollar coin—how would they fit? Until now, cock rings were available in even fewer sizes. No wonder, then, that finding a well-fitting cock ring was a mostly hopeless endeavor. Perfect Fit has developed the first cock ring sizing system to simplify your search and find the right ring that doesn't have too much pull but encloses the penis tightly enough for good effectiveness. To do this, we had to discard the standard size system that was used until then. We found that we needed to make rings that were 2.5mm apart in size to ensure a perfect fit. These new rings are called Xact-Fit, and we now make Xact-Fit rings in 14 different sizes, while other manufacturers only offer 3-5 sizes. The material is not too stretchy to maintain their effectiveness but is easier to put on and take off than rings made of metal. We're sure you'll quickly come to appreciate the benefits of this new sizing system. Made of exclusive soft silicone, Xact-Fit rings offer the highest quality and are extremely durable. Each cock ring of the Xact-Fit series has the respective size printed on it. For even more pleasure, the rings can be stacked on top of each other. If you prefer certain sizes, you can order your Xact-Fit ring sizes individually. The first cock ring size system developed for you features 0.25 cm adjustment steps for the individually perfect fit. Perfectly suitable for shaft rings, testicle rings, as well as cock and testicle rings, the soft silicone in premium quality ensures the highest erotic pleasure.