The hole in the center is too small so when I turn on the vacuum it closes completely. It was a better price than others and perhaps also reflects the fact that they are smaller than most brushes. I would have liked a bigger hole for them to work properly. I raised my rating from 2 stars to 4 maybe 5 after using it for dust removal. It works great even if it doesn't look like it. When you click on an interface it opens and works great. The bristles are long and soft, better than the previous ones. If you need it in addition to dusting where you're not pressing on the surface, this might not work. But I'm very happy with them.
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