Groutinator cleans grout instantly. Simply rub dirty, grimy grout with Groutinator and stains vanish instantly. The secret is patented blend of soft abrasives bonded in rigid elastomer to create optimal texture to rub away grime without damaging grout. Restores grout to original color. No harsh chemical, no scrubbing and scraping. Groutinator as seen on tv works on all grout colors and types. Cleans ground in dirt, mildew, hard water stains, coffee stains, wax buildup, calcium, algae, red clay and much more. Perfect for kitchens, bathrooms, countertops, floors, pools and more.