Product review (5 stars): Works great, easy to use.
This may be the easiest to use tool I've ever ordered that worked exactly as promised. It took no more than 10 minutes to clean most of the heavy lint out starting from the outside vent. And once I got the dryer moved to access the vent from inside, I did another quick 5 minute clean that direction and the vent is spotless. The extension rod is more flexible than you'd think. My vent pipe essentially does a u-turn to go down the wall and under the floor the opposite direction it starts and this handled it fine.