I think it would work better on thicker wodden or plastic frames. Mine is thin and metal, and they don't stay in one place, but constantly moving all over. I have to out some effort in hiding it behind my hair coz it looks like weird bulky rubber bits on my glasses. It prevents my glasses from slipping off of my face, but it hurts to ware them the entire day. By the end of work day I want to take them off, because it starts to develop little blisters on my ears.
Not impressed