We love wood because it is a natural material so it always has various markings that show up in Grimm's products, making each one unique. Grimm’s toys are always one of a kind, carrying unique marks made by nature. Wood grain has changing structures and colours which serve as proof of its natural origins. The unique variations are proof of quality, not defects. Discover the markings that make your Grimm’s toy Simply Unique! The large Rainbow is really versatile and ideal already for small children! Toddlers stack, sort and build and as the children get older they will use it as a cradle for dolls, as fence for animals, like a tunnel or bridge for vehicles, as house for dwarfs and dollhouse dolls, build amazing sculptures... this rainbow will always be integrated in playing with a lot of fantasy. This product is recommended by "spiel gut" (good toy guide). Materials: lime wood, non-toxic water based color stain. Size: length 38cm, height 18cm.