Brilliant concept. Lugging a bag full of spray cans around is what has always turned me off being a graffiti artist.
“Generally, spray cans contain only one colour. If only a small amount of paint is required, there will be considerable wastage. Color Dial Spray is a new type of spray can that contains CMYK colour cartridges in the one can. The user can immediately change the colour by turning the colour dials near the top of the can.
There are two dials: one for hue and one for brightness. These allow for precise mixing of the particular colour desired. The colour cartridges can be refilled many times over. This helps with the reduction of waste. The compact form of Color Dial Spray is convenient and portable.”