Grimm's Small Circle of Goethe - Color Wheel Wooden Mini Creative Puzzle Spiral design represents the Color Wheel based on Goethe's Theory of Colors A hands-on way to explore color relationships and encourage spatial thinking & creativity Ages 4 years to adult will enjoy using the pieces to create their own unique, imaginative designs Measuring 6.3 inches in diameter, this puzzle is handcrafted in Germany and includes 24 pieces All colors are non toxic water-based stains (no paint or varnish), lending to a natural look & feel