Superior cleaning of all glass (except electronic screens). Use this 20"x16" cloth to clean all your glass surfaces and add a final polishing touch to most hard surfaces. E-cloths really are different and give a fantastic chemical free clean with just water. What's more, if you take care of them they will last for years. E-cloths work so well that you will get a lint free, smear free, deep clean with just water because E-cloths are made of millions of tiny fibers that pick up dirt which normal cloths just leave behind. When we say tiny, we mean tiny-each fiber is about 1/200th the width of a human hair. These tiny fibers attract moisture and oil, lifts and traps dirt, grease, grime and bacteria. Leaving your surface clean and polished with no chemical residue left behind. Clean healthier with no use of chemicals and their potentially harmful fumes and residue. Especially important to children, as well as allergy and asthma sufferers. Save money and reduce the use of paper towels and chemicals, E-cloths come with a 300 machine wash guarantee giving you years of cleaning performance and savings.