Review on 🖤 Assorted Black Flush Mount Pieces by Bryan Orozco

They are made of hard plastic and are only designed for thin areas. They are quite difficult to use as plastic doesn't fit as well as rubber. I would have given less stars but the description says they are plastic and fit very thin metal. Can't complain too much. As for them, however, they work, but hardly. Not a fan of that. Instead I would advise you to find rubber stoppers.