GLEEN Green Cleaning Cloth: GLEEN, combined with the power of water, safely and effectively cleans hundreds of surfaces. This unique 16 x 16 inch cloth effortlessly cleans windows, mirrors, marble countertops and more, with only water, for a streak free shine. No need for expensive sprays, harsh chemicals or paper towels. Just dampen GLEEN with water, wring it out and experience easy cleaning, every time. The patented fiber technology leaves behind absolutely no streaky residue or scratches and cleans the following materials: glass, ceramic, marble, fiberglass, granite, acrylic, porcelain and aluminum. GLEEN is designed to work in your environment and protect ours. Get rid of harsh chemicals, unwanted toxins and make a difference with Earth friendly cleaning.