The thick, inner ring with closed end is used for placing in the vagina and holds condom in place. The thin, outer ring remains outside of body, covering vaginal opening. Find a comfortable position. While holding outside of condom at closed end, squeeze sides of inner ring together with your thumb and forefinger and insert into vagina. The internal condom is bigger than a regular condom, but don’t worry: it’s not uncomfortable when you insert it correctly. How to put in an internal condom: Check the expiration date on the package, and then open it carefully.