General description This Cleaning Set includes 3-inch and 5-inch medium heavy-duty power scrubbing brushes designed for a variety of cleaning tasks. Ideal for bathroom surfaces, shower tiles, grout, and more, these brushes are perfect for tackling tough stains on various materials. Technical specifications Brush sizes: 3 inches and 5 inches Bristle stiffness: Medium Material: Durable polypropylene bristles Quick change shaft: 1/4" stainless steel Usage Great for cleaning boat hulls, tires, grout/tile, tubs/showers, bearing rails, linoleum, carpet, upholstery, floor cushions, glass, and more. Designed to work with a variable speed drill for maximum cleaning control. Significantly reduces cleaning time compared to manual scrubbing. Other information Cordless drill not included.