Volk LensPen ophthalmic lens cleaning instrument utilizes a remarkable lens cleaning compound which removes finger prints, smudges and grease marks with ease. The Volk Lens Pen is safe for all fine optics, including multi-coated optical lens surfaces. The unique non-toxic, environmentaly friendly cleaning compound will not spill or dry out. Use the lens pen to clean BIO Lenses, slit lamp lenses, contact laser lenses, camera lenses, binoculars, camcorders, adapters and accessories. Use the brush to remove dust particles, remove cap and wipe lens surface smooth.