When you scrub harder, it scrubs harder. The Shurhold combo deck brush is perfect for washing gently, or scrubbing in areas that require more effort. The combo deck brush features longer soft fibers for washing and medium short fibers for scrubbing. As you push down harder on stubborn spots, the stiffer fibers take over. As with all Shurhold brushes, this combo deck brush easily snaps into any Shurhold handle and features a solid wood block and rubber wraparound bumper.