3 Color combo color swatch. For use with color change at height. A good way to see if certain color combo's look good next to each other or just to display your same colors side by side.
It's designed so you can see all 3 side by side or any of the colors in a 2 color combo by blocking off the other color.
There are debossed numbers on the color levels so you could use a a worksheet to track which colors you used on your color combo swatch.
The author hasn't provided the model origin yet.