It's a sponge. It's a scrubber. Actually, the Full Circle Flip Loofah Sponge is both. With tough natural loofah on one side and a soft cellulose sponge on the other, the Full Circle Flip Loofah Sponge expands to twice its size when wet and completely biodegrades when composted. Cellulose is naturally absorbent and resists bacteria and loofah becomes pliable enough to wash glasses when wet. Full Circle cleaning products are natural and biodegradable, made from sustainable and renewable resources. While cleaning with a Full Circle Flip Loofah Sponge, you can feel good about doing your part for the environment. Set of 2.