For all types of window, both inside and out. Chemical free cleaning for all hard surfaces. Pack consists of:- 1x window cloth & 1x glass and polishing cloth. Large window cloth cleans thick grim and grease from window frames and can be used for the first clean on large areas of glass. Glass and polishing cloth removes light dirt and is great for a final smear-free finish on glass. We use these in the factory for cleaning the office windows and they give a great finish with very little effort and only a little water.