Good with small drawbacks 2

The brush can be good and so remove the dust from lenses. However, the present specimen is prone to hair loss.
The brush can be sunk into the pen. The brush tip is open, however, as there is no cap on this side of the pin.
Due to the position of the retaining clip of the brush at the top and can be easily contaminated when worn with the clip or get wet.

The pen has an exchangeable tip with a circular and a triangular Samtfilz. The change of tip by turning is simple. The tip seat securely in the pen but is movable side, because the tip is made of soft rubber. Subjectively, caused by the movement of the tip feel better contact with the surface to have to preening. The Samtfilz-tip is protected by a cap.

Total useful tool for cleaning lenses, etc .. However, if the hair bristles sit fixed and do not precipitate and the positioning of the brush down would prevent soiling etc. the brush.