L.L. Microfiber Scouring Cloth with Poly Scour Side (4 pack). Orange Machine wash often in cold, with like colors and with non-linting items, to remove dirt, grease and dust. Washer and dryer safe; avoid chlorine bleach, dryer sheets, or fabric softener. Cloth will not scratch most surfaces, but can pick up particles that may scratch. Hemmed edge may scratch delicate surfaces.