Wipe Out sponges have water-activated micro-scrubbers that reach into the surface grooves, lifting away built up grease and soap scum. These sponges contain no harsh chemicals. Use on painted walls, floors, baseboards, switch plates, blinds, doors, windows, appliances, automotive interiors, boats, siding, sport equipment, athletic shoes, pools, hot tubs and much more. Sponge Type: Scrub Sponge; Shape: Rectangular; Width: 4.6"; Height: 2.5".