The T-H Marine Wave Away Sonar and GPS Screen Cleaner is a specially formulated cleaner designed to clean and protect LCD screens. Not only is it ammonia and alcohol-free, but it is designed to stick where it’s sprayed. Unlike most cleaning products, this cleaner resists dripping into sensitive electronics which can cause permanent damage or failure. T-H Marine Wave Away Sonar and GPS Screen Cleaner Includes: (1) Bottle of 1.5 oz. Screen Cleaner 12" x 12" Microfiber Cloth Velvet Drawstring Bag