Product review (5 stars): Incredible Tool and Big Money Saver...
I had not cleaned my dryer ducts..ever in 10 years.  I have a 16 foot run straight up to vent outside.  It got to the point where it was taking 80 minutes to dry a load of clothes.  My options were to pay COIT or some firm like that $100 plus to clean my ducts or purchase this cleaning system which I can use over and over for a third the price of Coit.  This product works 200% better then I ever expected.  The rods are highly flexible allowing me to work in tight quarters with them, and the brushs are of a very good quality, and do an incredible job.  Two big thumbs up for this one!