Four Seasons German Suede Combo Shoe Brush is a multi-use cleaning tool for cleaning suede and nubuck.Can be used on shoes, boots and more. Removes dirt from suede uppers, cleans mud from soles and cleats of boots and golf shoes. Can also be used to clean the welt around the sole, and to revive the nap after it has become matted. One side of the brush has rubber bristles, and the other has a combination of wire and nylon bristles. Each edge of the brush has a raised grooved edge for getting into tight grooves. Not for use on smooth leather.