Cleaning brush Our brush is made of full biodegradable raw materials: natural beech wood and tampico and palm fibers. Its stiff fibers will deal with scrubbing really persistent dirt, and tampico under the influence of water softly and adapts to the shape of every vessel. Dirt does not remain on the surface of the fibers, it is more hygienic than standard sponges. After use, rinse, run water and leave in a breathable place.