I had long wondered whether I grow me a lot of sought-after window sucker. By chance I came across this product and the many good reviews. Because of the addition still good price I dared and am overwhelmed: The whole circle has the part get now recommended because it makes absolutely streak-free window cleaning in no time possible. I clean with microfiber cloth and detergent-water, draw from top to bottom and wipe the water at the bottom with a microfiber cloth path done! Polishing unnecessary. We have very many large and old windows, which is why I had the strenuous cleaning and polishing distributed previously on several days. Now I'm through in an hour. No window sucker could keep up!