Product review (5 stars): A must have cleaning product for dryer vents.
Never realized how much dust was trapped in the pipes.  I would recommend purchasing the extension rods as I found out, I don't like to go on the roof  with this contraption and it's much easier to just be able to clean the pipe from level ground in the comfort of my house - not on top of the roof in the heat.

Great invention that works well with a cordless drill.

As a bonus, now that I have this, I found myself cleaning the vent more often.