Product review (4 stars): Worth it
Definitely worth the price, compared to a service call, to clean out the clogged dryer vent duct to the outdoors. We did have to work from both ends of the duct to remove the lint clog. Cons: These tools were so compressed and folded up to fit into a very small box from the manufacturer that it was hard to "un-spring" them to use as tools. It would have been helpful to know that one must turn the extension brush only clockwise in the duct, or the brush will un-screw from its cable stem, probably in the middle of the duct length somewhere. In the end, these tools did the job.