The Gardus LintEater Junior 4-Piece Rotary Dryer Vent Cleaning Kit is the most valuable tool you can own for ensuring the the safe operation of your clothes dryer. The professional design makes it easy to clean and maintain the exhaust vent, lint trap and under/around your appliances. It effectively cleans all types of dryer vents up to six feet in length (3 feet from each side) including metal, foil and white vinyl. The 4-Piece kit includes: Two 18-Inch long flexible rods; One large 2-1/2-Inch diameter lint trap brush with 42-Inch reach; One 4-Inch diameter self-feeding Auger Brush for cleaning the exhaust vent. The auger brush and flexible rods screw together to clean manually or to spin with a cordless drill (not included). The rotating action of the Auger Brush and flexible rods scours the entire vent wall surface, while negotiating the multiple turns common in most dryer vents. The LintEater 12-Feet Extension Kit may be purchased separately to extend the reach of the rods for longer exhaust vents.