A blow of pschittt pschitt on the glass, is spread the product with the moistener. Then gently pass the cleaner with its scraper which sucks the product, without a trace, without effort ... (a little help to take to meter tilt, speed, handling) When we see the color of the liquid into the tank, there is no picture! 3 large French windows made in 15 min ... No product on the ground, no rag washing ... Magic!
