Product review (5 stars): Excellent product!
Easy and clear instructions.  Fit my snap-on tools shop vac perfectly.  There was so much lint in the vent duct, we're lucky we didn't have a house fire.  The biggest bonus... Learning my dryer isn't going out it just needed the ducts cleaned!  The photo shows 1/4 of what was in the duct.  Thanks for a great product that works just as described!