Product review (1 stars): Too hard to make work.
I didn't think this purchase out very well.  First of all, it was packed in a box with a heavy item and the thin aluminum arrived all bent up and dented.  I do like the end with the cover, but it was very hard to work with and I still ended up attaching a pleated hose from the dryer to the vent.  Unless the dryer vent opening is exactly lined up with the hole in the wall, it is not easy to install.  The aluminum kept coming out of the outside piece because it just barely slides into it.  I finally had to get some duct tape.  Finally done but not worth the time spent installing it.