Safely use scrubbing sponge to scrub without the fear of scratching your favorite surfaces. Unlike traditional sponges, Scrub Daddy has been independently lab tested to rinse clean of debris and resist odors up to two months. It is also dishwasher and washing machine safe. Mouth is designed to clean both sides of forks, spoons, knives and other utensils at once. Safe for use on wood, plastic, copper, cast iron, fiberglass, stainless steel, vinyl, car exterior paint, non-stick coatings and glass.