Basically, I looked into all the big brands and decided to go with MeLuna because they are latex, PVC and silicone free, so they're anti-allergen which is what I was after, as I'm allergic to latex and easily irritated down there. I also had a mooncup but got rid of it as I did find it irritating. I bought a pre baby MeLuna before DD, but they threw in a free after baby one which is awesome now. The stems on mine are a ball and a ring. Both are equally easy to remove.