Product review (5 stars): Don't get stuck, clean your duct!
Yes! Cleaned my dryer duct! My dryer would not dry properly and the technicians who were installing couldn't figure it out. Found this, connected it to my power drill, and boom, magic. I had to push in and pull out in order to clear the entire duct. Once I turned on my dryer, it blew it clean. Now my dryer works how intended!