Product review (5 stars): A Must Have Tool For Your Household Cleaning
We have quite a long dryer vent to the outside and really needed a way to clean it.  We had had a make-shift twirler but wasn't satisfied with the results.  Thus, we purchased the Deflect-o brush kit.  It works like a charm with lint coming out in drifts.  Turning the dryer on cool and letting it blow while going in from the outside really did the trick.  We also ran it from the inside to the outside with a shop vac running on the outside to pull the lint on through.  The the screw together pipes were quite easy to attach to each other and upon the advice of another reviewer, we put a small piece of duct tape around each connection just to be safe and not have them come apart in the middle of the venting.  The brush is nice and stiff which we found to be such a plus as it was able to loosen all the built up packed lint on the sides of the vent line.  I highly recommend this kit for keeping your dryer vents clean and fire hazard free.