Product review (3 stars): Watch out! You might lose the brush in the vent!
This product works great but the part of the instructions that are left off is how to keep the brush on the extenders! I now have a brush stuck inside the dryer vent and have to figure out how to get it out. The instructions tell you to duct tape the connector joints but nothing about how to secure the brush to the extender. My brush apparently got caught in the vent with some wet lint and when I tried to reverse it out, the extender released and left the brush in the vent. It's too far down for me to reach and lodged in an elbow of the vent. So irritated because it was working fabulously until this unfortunate turn of events.