Dependable: ZEISS microfiber cleaning cloth leaves a streak-free finish and is suitable for everyday use. Safe: Use ZEISS microfiber cloths on a variety of items including lenses with anti-reflective coatings, blue light blocking coatings, prescription, reading, sunglass, binoculars, or camera lenses. Effective: Designed to remove smudges and dirt with gentle cleaning and is reusable and washable. For best results machine wash occasionally and do not use fabric softener. Non-abrasive: Our ultra-soft eyeglass cleaning cloth is non-abrasive and soft to be tough on imperfections, not lenses. Convenient: Made for on-the-go use, perfect to keep in your car, backpack or purse.