Bellows for gentle cleaning of optical surfaces
... removes loose dust from lenses and CCD sensors - important cleaning aid
Clean optical surfaces from dust using pure air. In contrast of cans with compressed air, no blowing agent can be sprayed onto surfaces. The front opening has a diameter of 2mm accelerating the air to high speed for effective cleaning.

Especially at CCD cameras where dust particles on the optical window cause annoying "donuts" in the image, this bellows is a great help. So this bellows belongs into all astronomical and optical accessory cases.