Product review (2 stars): It broke easily
This thing is not durable. The rods broke TWICE while I was cleaning the vent, because it has a corner in it. The first time the rod broke at a low point and I was able to retrieve and and then use the remaining rods more carefully. Then it broke again much higher, and it took my over an hour to get the darn thing out. Now two tubes are broken and the remainder are barely long enough to be used again, not that I would use it again. I'm not going through that ordeal another time. Only redemption is that is was working until it broke.