Zep 19oz Glass Cleaner is an ammonia-free, streak-free, foaming cleaner, which cleans, shines and protects the glass surfaces from dirt. Its powerful foam is designed to dissolve oil, grease, dirt, fingerprints, and smudges on contact. The cleaner is specially formulated to cling on to the glass surface, which prevents dripping and streak formation. It also repels dirt and fingerprints, keeping your glass clean for a longer period. The spray bottle allows you to control the flow of the liquid coming out of the bottle.