CS400, by French urban activist SCANDAL, is an emergency spray can to make graffiti.

CS means Concept Subversif and 400 reminds the content of a spray well-known by taggers. It’s presented as a 40 x 70 cm emergency box that contains a real paint can and four logos that explain how to use it: “Break the glass”, “take the can”, “shake well”, “tag”.

In a recent interview, the artist said he was planning to install them in as many public space as possible in Paris.

Via (in french) technikart.
Art guerilla.