Worldwide, humans chew about 560,000 tons of gum a year.
The purpose of this campaign is to interactively rise awareness of the bad sides of chewing gum.
These double-sided printed pictures are being placed on different random spots, like subway, street, park etc.
The picture on the surface of these cards matches the environment where it's been placed as you can see on the picture.
The surface is covered with a special glue.
Once a person steps on it, it will stick to his shoe (the same effect that a chewing gum had when we step on it) and then on the website, he will read information about what damages might a gum cause to the environment.