The Blue Mr. LongArm Bi-Level Flow-Thru Brush has very soft bristles and will not scratch gutters, glass, or painted surfaces. The Yellow Brush is a stiff cleaning brush used for cleaning siding, stucco, brick, wood, etc. Each has a threaded hole for easy attachment to any regular Acme threaded extension poles. This Brush can easily be modified to work with a do-it-yourself Waterfed Pole.
