Product review (2 stars): Product NOT as shown. Cheap and flimsy material. Wide gaps in the joints.
The picture is NOT what you will receive. What I received was flimsy and the square riser piece was in two sections (not a solid piece like their picture shows). The two sections are needed to allow for telescoping adjustments to make it fit to length but the joints between the two sections come a long way from a tight fit. 1/2 inch tolerance in my estimation. Mine was also damaged (no fault of manufacturing) bent around the end of the round section that fits over dryer exit pipe and the rising part was dented and crimped in one place.  Had I been able to see and handle this item before purchasing I would have never made the buy. This is very thin and flimsy material. Not worth the $30 in my opinion. Not worth a PIA return either. I will likely install this but I am not pleased. I will have to bend and manipulate and seriously wrap this thing with aluminum duct tape. Spend your money elsewhere this is not worth the price.