The CS-40, Carson C6™ Jumbo Lens Cleaner Pen, 20mm Tip contains our Dry Nano-Particle Cleaning Formula that wipes away smudges, grime and fingerprints with ease. The Jumbo Soft Tip is safe and easy to use on larger lenses. The C6® Jumbo Lens Cleaner also includes a retractable brush to remove dust and debris. The C6® Jumbo Lens Cleaner is perfect for cleaning Telescopes and Spotting Scopes.