HOUDINI is the little sponge with amazing stain removing action. It eliminates stubborn stains on walls, wallpaper, doors, floorboards, tile, wood flooring, countertops, work surfaces, lockers, signs, dry-erase boards, copy machines, vinyl, glass, plastic trim, leather, hard furniture, outdoor furniture, shower doors, car wheels, stainless cookware, computer monitors and hardware, church pews, sneakers and more. HOUDINI contains no chemicals and uses only water. Especially effective on permanent marker, crayon, ink, graffiti, lipstick, scuff marks, fingerprints, luggage marks, tea, soap scum, coffee and wine stains. Shines chrome, brass, copper and stainless steel.