Product review (1 stars): A waste of money
I've seen this product reviewed several places, and it looked like a simple, inexpensive solution for me. It was a waste of money.

First the clips were on the small side and very difficult to manage. When I finally got one of in place, it dug into the tube and tore the flimsy foil.

This brings me to the second problem: the tube is made of a foil covering a wire frame. The foil is thin and flimsy. It tears easily.

I ended up getting aluminum dryer vent tubes from the local hardware store. They are more expensive, but easier to work with, much more durable, and well worth the investment.