Wm Harvey 092455 Outside Tube Cleaning Brushes Wm Harvey 092455 Outside Tube Cleaning Brushes Features:;Clean the outside of tubing of dirt and debris;Prepare joints for solder and make ideal battery post cleaners;Wire bristles;White plastic;Carded;092435: 1/2" inside diameter, 5/8" outside diameter;092455: 3/4" inside diameter, 7/8" outside diameter