"Works a treat in the shower"
We've got one of those chrome waste covers in our shower and my hair was always getting trapped inside it, much to my husband's disgust!! So we took the chrome cover off and placed the dossil over the trap. It sticks fine on the stone shower tray but not the plastic trap, but it doesn't matter if its not stuck on all sides as it doesn't move even with our power shower on. And all the hair just collects on top for easy removal :) I'd reccommend buying the bigger one to make sure that even if it moves slightly, it still covers the trap