This environmental friendly wooden Rainbow Numbers Game is made of wood from FSC-monitored source, painted with water-based paints, packaged in a box made of recycled materials, and printed with soy-bean ink. Kids can learn counting and numbers. Color coded matching provides helpful hints to minimize frustration. The game helps develop motor and cognitive skills. Store the pieces in the nice and sturdy drawer box which comes with the toy. Tested to meet European and U.S. safety standards.