Product review (1 stars): This product is totally inappropriate for use on any household ...
This product is totally inappropriate for use on any household dishwasher.
It is far too large, too heavy, and way way too stiff to get into any dishwasher spray arm that I have ever seen.
The bristles are so incredibly hard and violent it could be used for expanding holes drilled into concrete.  If you were ever able to get this thing into any object made of plastic or aluminum, that object would be quickly abraded through and destroyed.
For any household dishwasher, this product is absolutely the wrong choice.