Pro Plus heavy-duty sponge. Provides great absorbing and cleaning efficiency, very similar to natural sponges. To maintain your Estracell HD sponge, wash it thoroughly in warm water before and after each use. Big job sponge for wall washing and papering. Other uses: Cars, boats, floors, woodwork, and windows. Size: 7-3/4" x 5-3/4" x 2-1/4".