To say I was skeptical is an understatement. "You want me to put that where" I asked my friend who swore by the windi pipe. I actually refused to try them because I had already tried everything and felt so defeated. My friend sent me a box anyways so i eventually caved and tried them after a 7 hour long colic episode. And oh my word, they worked! They actually worked!! I put a little coconut oil on the end, put it in her poor little booty and after a few minutes she started ripping them! She had so much trapped gas and the windi pipe helped her it all out. Colic episodes went from hours to just minutes.