We offer professional facade cleaning (see http://www.fassadenmax.ch). Our products remove algae. We work with drones and telescope. Our clients are private home owners or real estate companies all over Switzerland. We would like to send a flyer (direct mailing) to potential clients. This flyer is printed on both sides. The format is either A6 or A5. The back part of the flyer can be used only on the half part.