Use the brush to dust cleaning inside the PC, and there mainly in places where towels not come. The brush has of me get the best evaluation for lack of viable alternatives, but miracles can not accomplish well. Especially the rubber part only solves the dust, but only takes up very little on them, so that the dust as small flakes usually falls somewhere else, where you can then but him wicking. For those who often times the PC open to clean inside, a great addition.
