The original LensPen is the ultimate photography tool. Perfect for cleaning camera lenses, binocular lenses, small aperture spotting scopes and telescopes, eyepieces, and other optical items. Comes with a handy retractable dust removal brush and a special non-liquid cleaning element, designed to never dry out. Safe and very easy to use. Full-size LensPen® 11cm long with a round cleaning tip measuring 12mm in diameter - Cleaning tip is slightly concave to match the slightly convex shape of a lens