Pick the stiffness of brushes specific to your needs.
At the time I purchased these I was looking for a brush that I could use on carpet. I did not realize that brushes are color coded for stiffness and that these are too stiff for carpeting. So, shame on me. I have kept them in case I needed to clean tires, decking or other firm surfaces, but have not used them as yet. Buyer beware to pick the brushes you need for your situation. I do like the concept of being able to use my drill to power the brushes rather than having to purchase another power unit.
Rating: 4 stars