SECONDS The Ignis Mini CMY Cubes Colour Cube STEAM Toy Colour

The Ignis CMY Tetrahedron is a beautiful polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The Tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces. It is one of the 5 Platonic solids.