Kolormondo Color Globe: an exploration of CMYK color along three dimensions. Latitude is the value dimension with the top poll white and the bottom black, longitude is hue dimension and the standard cyan-magenta-yellow color wheel flows around the equator, and chroma is the radial dimension with gray at the center. Assembly of this quality paper kit is a fun way to learn about aspects of the psychophysics and physics of color vision. ➡️ Follow the link in my profile for info on where to get this