Regular and thorough vent cleaning is important for the safe operation of any vented appliance, This brush by Rutland is designed for the special needs of vents for pellet stoves and dryers, It has a soft bristle brush with a relatively small diameter that is mounted on the end of a 20" handle, This allows the navigation of sharp turns, even through pipe elbows, without getting caught, The brush head is 4"" and is made with 0, 020"" poly filament, SKU: RTLD081