Product review (4 stars): Dryer Vent - Thumbs Up
I was hesitant to purchase this because of previous reviews, and I don't usually submit reviews, but in this case felt it was important to provide updated information to others.  This product is the same thickness aluminum found in local hardware stores.  And yes, you need to use the special silver tape for HVAC venting to seal the edges, but that's the primary benefit of having a dryer vent product that is adjustable.  This one in particular suited my needs because I needed a discharge pipe at the end of the tube (vice on the side).  This product works as advertised and if you need the inlet and discharge holes as depicted, I recommend purchase of it.  It's working as designed with my brand spanking new dryer.  :-)