Scrubbing sponge made of polyester and polyurethane, color varies. Will not rust, contains no metal. Anti-bacterial technology. The Ideal Non Scratch Scrubber For Cleaning. Stainless steel, plastic ware, Teflon, golf clubs, windows, microwaves, vinyl siding, kitchen cabinets, patio furniture/umbrellas, outdoor planters, glass cook tops, pet dishes, wash the pets, tile floors, car white walls, car windows, bird baths/fountains, wood molding, china dishes, copper cookware, showers, shower doors, sinks, guns, wood paneling. Color may vary. Made in Israel.