Gorgeous Ink and Watercolor on Board Color Theory Wheel and TrianglesI assume this color wheel, with color form triangles that rotate over top, was created for a color theory class long ago, but whether or not one understands color theory, what a beautiful thing! Ink and watercolor (for the wheel) on heavyweight board, with a wire at center which can be pulled straight to take the triangles on or off. Super satisfying. 5 9 16" tall and wide and in very good condition, with minor bumping to the points of the triangles.