€¢ Durable; abrasive coated foam for lasts up to 5x longer than sandpaper; resistant to tear €¢ Extra firm sponge with wider faces for dual sanding capabilities €¢ Washable for long life; rinse and reuse €¢ Designed for sanding drywall and gypsum board €¢ Coated 2 sides €¢ Create near perfect corners of an inside drywall corner €¢ Medium grade >> Abrasive sanding sponges are abrasive coated foam which is extremely flexible and is use in hand sanding applications covering a wide variety of curved; contoured or flat surface applications on wood; metal; paint; plastic; ceramics and drywall."