The CS-50, C6 Screen Cleaner from Carson Optical, contains our Dry Nano-Particle Cleaning Formula that wipes away smudges, grime and fingerprints with ease. The Soft, retractable pad is safe and easy to use on all screens. It also includes a built-in ring on the body which allows easy attachment to Keychains, Carabiners, and other Clips.The C6 Compact Lens Cleaner is perfect for cleaning Tablets and Smartphones. The CS-50 Screen Cleaner comes in a convenient 2-pack.