Contrary to the announcement suggests, putting "brushes" in the plural, there is only one brush. The packaging from cardboard by Amazon is perfect, however, the cover of the plastic CD was broken, bringing to think that someone could have stepped on. On the CD, however there are circular scratches, just off the brush with brands that are not fingerprints. In short, the CD status made me doubt on the effectiveness of the brush, yet after one pass the tip of the brush has become all black. The brush air to do its job!
