Black Diamond"s Glass and Hard Surfaces Cleaner is a premier product designed specifically for the care and maintenance of your glass, windows, mirrors and all other hard surfaces including tile. The streak free formula now contains Poly (PS3) Shield which was specifically formulated for cleaning glass and hard surfaces. Glass and Hard Surface Cleaner allows you to achieve a streak free clean every time you clean, but now with Poly (PS3) Shield cleaning glass and hard surface is easier and faster while protecting the surface with an invisible shield that resists soil, finger prints, grease and water spots. The streak free shine prevents soil from re attaching to the surface (great idea.). Keep your windows, mirrors and other hard surfaces looking like new and make your cleaning easier and faster with every use. Black Diamond"s Glass and Hard Surface Cleaner is completely safe for use around pets, kids and the environment. Enjoy this biodegradable product for your home or office glass and hard surfaces.