Product review (1 stars): but definitely would not recommend them for an uneven surface like mine
made of the same stuff that oven liners are made of. seems very unsafe to put around burners. very hard to trim to fit the opening properly. I threw these out before I set my kitchen on fire. might be okay for a flat surface, but definitely would not recommend them for an uneven surface like mine. probably should have tried to return them, but since I had already cut them, I figured I wouldn't get a refund.