Product review (5 stars): $ well spent
I have a vent that exits my roof, some 15-18 ft from dryer. After a year of subpar dryer efficiency I concluded my duct system was full of lint, and was I right. I purchased this inexpensive tool, and in 30 min my vent was lint free. The amount of lint accumulated in 12 years was incredible. If your dryer is not at peak performance and your element(s) are working--order this product--best $26 I have spent.