Pinit 3M Scotch-Brite Purple Diamond Pad 20" SKU 3M23894 QTY AVAILABLE: 20 $86.38 Quantity -+ Add to Cart Details Scotch-Brite™ Purple Diamond Floor Pad Plus 20" Diamond-coated floor pads for cleaning and polishing marble, terrazzo, slate and polished concrete flo... Details Back DetailsScotch-Brite™ Purple Diamond Floor Pad Plus 20" Diamond-coated floor pads for cleaning and polishing marble, terrazzo, slate and polished concrete flooring. Helps eliminate floor finish and helps reduce labor costs.