Easy to use! The Scrushers polyethylene bristles remove mud, grass clippings and other debris from boots BEFORE they enter your home or business. Steel and hard maple construction. Replaceable brushes. 11 1/2in. x 6 1/2in. x 5in. U.S.A. Material: Polyethylene bristles, Frame Material: Steel and hard maple, Dimensions L x W x H (in.): 11 1/2 x 6 1/2 x 5