Product review (5 stars): Great product for dryer duct cleaning
I have apartments that I maintain and the most common source of a slow drying dryer is restricted air flow caused by lint build up or birds nests in the ducting.  I have this kit plus the extension kit and the two together are long enough for all my needs.  The blockage removal tool is great for removing birds nests.  After years of usage I have only destroyed one of the rods by having the connector come off.  I pushed the auger brush through the duct and out the damper at the end.  When trying to pull back through, the brush caught on the damper and resulted in one of the connectors pulling off.  My bad, not the equipment's.  While cleaning your ducts it is also a good idea to pull the back off the dryer and clean inside.  I have had a dryer fire ignite from lint that collects inside the dryer.  This might be more of a problem with gas units but better safe than sorry.