Product review (5 stars): better than foil tube.
You will need thermal tape and tin snips/industrial scissors for sure. It comes with screw claps that are good. Has curved section, by each hole on the inside, to smooth out exhaust flow. Not to bad of an install.  Definetly better than foil tube if you have a tight wash room area. Installed on an old school style dryer and works great. Measure, slide ends in or out, cut excess sheet metal, test fit. If it fits good then finish trimming excess metal and then cover ends with thermal tape.