Brillo® Estracell® kitchen sponges are designed with unique fibers that dry faster, and rinse 10x faster than other sponges. Use a different sponge for each of your surfaces, so you can clean up without spreading bacteria around. This, plus the fact that bacteria won't grow on our Estracell® sponges, makes them more sanitary. Sponge Type: Scrub Sponge; Material(s): Polyester; Shape: Rectangular; Width: 4.5".