Product review (5 stars): Great for awkward laundry vents!
So glad that I ordered this! I have an odd setup for my laundry room. The vent height is too high in the wall and the room is too small for all the vents that I've tried. I ordered a sliding size vent, elbows, vinyl vent hoses (but was too scared to use them for long), and all wouldn't stay because of the odd angle. Super frustrating situation. I finally just left the doors open to the laundry room when the dryer was on.

After almost a year, I finally got fed up with the noise and heat from my dryer and bought this hose. I didn't expand it, but used it compressed. The hose is the same width as my dryer exhaust and wall vent, so I used aluminum tape (also bought on amazon) to attach the hose to an elbow from the dryer and the wall vent. Perfect!