SPECIALLY DESIGNED FOR BLUE LIGHT GLASSES: The lenses on blue light glasses are coated with special filters designed to block up to 100% of blue and green light. Sleep ZM designed these special microfiber cleaning cloths specifically for the USA market and to protect your investment in Sleep ZM blue light glasses. SPOTLESS CLEANING AND CLARITY EVERY TIME: Premium ultra-soft microfiber effortlessly removes dust, oil, smudges, fingerprints, and dirt without leaving scratches, streaks, marks, or lint—giving you crystal-clear clarity every single time. SAFE FOR ALL DELICATE SURFACES: Gentle and safe for eyeglasses, sunglasses, camera lenses, smartphones, tablets, LCD TV screens, and all delicate electronics. Its compact design fits neatly into your tablet case, purse, or pocket, providing convenient clarity anywhere you go. GREAT VALUE PACK: Includes individually wrapped microfiber cleaning cloths, each measuring 7x6 inches, sealed in protective PE bags to stay clean until use. With this bulk pack, you can conveniently place one at home, in the office, your car, camera bag, or eyeglass case, and still have plenty to share with family and friends. WASHABLE & REUSABLE FOR LONG-LASTING USE: Easily hand washable in cold water with no detergent or bleach and quick to air dry. Durable enough to reuse over 50 times without losing cleaning power, saving you money while consistently delivering spotless results. Micro Fiber Cleaning Cloth - Specially Designed Premium Cloth for Blue Light Blocking Glasses, Lens, Screens and More - 7 Pack