Product review (5 stars): 20 feet of strong and flexible dryer venting
It was great to find a 20 foot length vent, which was the perfect length to replace my old dryer vent.  I was alarmed to discover that lint was clogging the outlet that led to the outside, so I knew it was time to replace the whole line. Besides having to clean up some loose ends on both ends with a wire snipper, the vent was in great shape and expanded effortlessly. The covering is tough and withstood a couple of pokes from an exposed nail that came through the basement ceiling.

The 20 foot length allowed me to install an uninterrupted line from the dryer out to the vented outlet.