Product review (5 stars): Easy to use
When the thermal fuse in my 18 year old Kenmore dryer died, I figured it was best to clean out the dryer vent.  Our house is 14 years old and we have owned it for 5 years, so who knows what was in there.  The run is 26 feet long, though!  I had to buy an extension kit to get the brush 24 feet into the vent.  Finally I put the leaf blower into the hole to blow the lint out.  Inexpensive tool to help prevent a dryer fire.