Features two sides: white side uses water to penetrate surface grooves to break up tough dirt and grime; blue side is a soft absorbent layer that wipes up everyday messes all over the house. The blue side also helps hold on to the eraser as the white sidedisappears. Cleans scuff marks, crayon marks and dirt from walls, floors and doors. Breaks up tough bathroom soap scum. Removes set-in dirt on refrigerators and other appliances. Cleans ground-in dirt on patio furniture. Contains 2 disposable 4.6 in x 2.4 in x 1 in cleaning pads.