These hooks make it wonderfully easy to take the shower curtain and liner off to launder them and then hang back up -- a very welcome change from the plastic circles I had been using on the shower rod.  They make some noise when the curtain is pulled along the plastic rod, but that's okay.  However, the packaging the 12 hooks came in was diabolical!    I don't think I ever had such trouble in my life removing a product from the packaging holding it in place when purchased.