At least the adhesive backing is worthless on smooth surfaces. Probably OK if you're using under furniture that will seldom be moved. (If you need pads on furniture legs that will allow movement/sliding of the piece, then the pads from Protector - on Ebay - are the ones that really work in terms of adhesive.)Also, the black felt from this outfit sheds a lot of tiny black fibers - don't know how long that would continue since I threw my black ones in the trash and the white (grey) ones will follow soon.
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