Product review (5 stars): IT WORKS!
I topically don't have the time to write reviews but I have to leave a few words regarding this device. THIS THING WORKS! I managed to clean about 12' of duct: one 65 degree bend and a 90 degree bend, without any issues. The amount of lint and dirt that this device collected was insane. So, do yourself a favor if you love your family and cherish your property and safety! Clean those vents every year or two! I used a cordless drill. This made it very convenient and helped getting it around the turns. I'm very satisfied with the item and like others have said in their reviews, my drier works more efficiently now and dries faster.