The Libman Big Roller Mop with Scrub Brush has a 12" wide, tear resistant, synthetic sponge with raised cleaning circles. The 8.5" wide scrub brush with 0.75" long stiff bristles is great for scrubbing tough spots. Its unique angled head design maximizes sponge to floor surface area coverage and reduces user fatigue. Uses an easy pull back, ergonomic handle grip to wring.