Spray, play and wash it away! Use on concrete, grass, asphalt and sand. It's easy to turn outside surfaces into works of art that float in the air with 3D glasses. WARNING! Contents under pressure. Details: Includes assorted colors Set of 3 paint cans 6 oz. (170 g) each can Aerosol spray Temporary, washable Nontoxic colorants Contents: Can of red spay chalk Can of white spray chalk Can of blue spray chalk 2 3D glasses