This larger version of the rainbow puzzle provides unlimited hours of creative, open-ended play. Children can assemble the pieces any way they want, and Parents will be surprised at the number of shapes and structures into which their young ones can combine these simple pieces. This puzzle is ideal for stimulating problem solving skills and spatial reasoning. Grimm's Spiel und Holz toys are lovingly designed and manufactured in Germany. Toymakers use only the highest quality, sustainably harvested wood and completely natural, non-toxic dyes, paints and finishes.