The Vortex Lens Pen LP-2 is a great accessory to clean off dust, fingerprints and smudges. The Lens Pen uses a groundbreaking non-liquid compound that outclasses most liquid cleaners, and best of all it doesn’t leak or dry up. The Lens pen is safe to use on optics, binoculars, sunglasses and eyeglasses. The retractable natural hair brush removes dust and can reduce static charge build-up.