Product review (5 stars): Worked wonderfully. My dryer vent is about 13ft
Worked wonderfully.  My dryer vent is about  13ft. So I came in from outside while dryer  was running a few feet at a time so the lint would be blown out as I went.  Then  went inside unhooked dryer went in that way12ft. I have 2 90 degree  turns in the vent line. This product had no problems with that. I recommend this product.