BRUSH COUNTER DUSTER. The Counter Duster brush is made with synthetic fibers and is perfect for dusting most surfaces without the slightest problem. It features horsehair bristles, ideal for cleaning dust from delicate or polished surfaces that are scratch resistant and can even sweep away fine particles. It can also be used in dry or wet conditions. They come in many colors and have great water holding capacity. Furthermore, it is resistant to solvents, acids, alkalis and heat.