I have them, they are pretty okay. But the material they are made of reminds me of a Brillo pad (but a LOT more gentler) That kind of sucks because once it's time for me to take it out my hair is tangled in the roller. (I wish it was cloth instead) But it does make tight buns. You have to have your own hair tie along with the hot bun in order to use it. And where it snaps together, the hair doesn't like to completely cover that. It's okay, more of a hit or miss. They have cloth ones out there I just don't know their names.