Lint-free. Scratch-free. Unique 3M microfibers lift dust and oils from delicate lenses without the use of chemicals. Ideal for smartphone devices, eyeglasses, lenses, camera lenses, binoculars, microscopes, and other delicate surfaces. The cloth is reusable and machine washable hundreds of times. Remove fingerprints and smudges without scratching. 1 cleaning cloth per package. 7 In. x 6 In. (18 cm x 16 cm).