If you ever cleaned glass out of a glass run channel, you
     know the problem. Broken pieces of tempered glass will
     hide behind the lip of the glass run channel and scrape
     the door glass when you roll it up or down. Our glass run
     channel cleaner reaches behind that lip to remove even
     the most stubbornly wedged pieces of glass that are
     almost impossible to get out with a screwdriver. The tool's
     rounded tip was designed to prevent damage to the
     weather stripping and is 24" long to reach to the bottom
     of the deepest door.