Cut out the half circles on the packaging card sizing guide to determine your size and eliminate the guesswork.
Just in case you don't know your size, the Combo Pack includes all 3 sizes. The male external catheter is worn just like a condom and is comfortable and easy to use. Rugged Radios Positive Flow Men's Racing Catheter - 1/2 Ton (29mm) - PFC-29 Remember, with Positive Flow, you get positive results! When worn properly the male external catheter will not leak or come off, making it perfect for long distance racing applications. In this particular case, size is important.