The 10-piece rainbow is part of the Grimm´s world of numbers, where games fit perfectly together. Children can discover the more abstract world of numbers in many different ways by playing and by simply using their different senses.

They can make sense of what belongs together and thereby discover the world of numbers for themselves. These are not traditional educational toys or materials that are precise and guide toward one correct answer.

None of the products have numbers or fractions on them since the main intention is to provide materials that stimulate free play in various ways. There are endless ways to discover the abstract world of numbers by using the different senses.

These gorgeous toys are made using alder, lime, maple and cherry wood. Wood is natural, regenerative and stimulates the senses. It has texture, sounds different and smells good. Bacteria cannot reproduce on wood. This all is not true for plastic or metal. All dyes used are water based and are non toxic, as is the natural oil used.

• Dimensions (Approx) length approx. 27,5 cm, height approx. 13,5 cm.
• Materials: lime wood, non-toxic water based color stain.

Why can the rainbow only be stacked in one direction?

Our organically designed Rainbow is hand-sawn from one single piece of wood which requires a lot of experience to do this work free hand. This leads to an asymmetrical construction, resulting in a more pleasant, natural appeal in comparison to using precise, symmetric stencils. Therefore, individual arcs may need to be rotated to obtain a perfect fit! It is exactly what makes our toy so special and each one unique.

The following are normal characteristics of the Grimm's Rainbow, and are not considered a fault. Please consider these careful before purchasing:

• It is normal for the bows to be varying widths, some may be thicker than others, and some bows may vary in width over the length of the bow.
• Visible grain and knots and both normal characteristic of the rainbow which are cut from a single slice of tree truck. Sometimes the natural grain can be dark and patchy in areas.
• It is normal for the colour staining to have variations, on the inside centre of the rainbow there is often less staining, and there can be areas where the natural oils in the wood cause a speckled or patchy affect to the staining.
• Grimm's use a stain on their wooden toys rather than a lacquer - it is normal for some colour transfer to occur during play. Non-lacquered wood has a lovely texture - the rough texture of the stained wood is not only an important tactile sensory experience for children, but those rough surfaces make it possible to build in more ways, because the parts do not slide down so easily as the wood surface is still natural and not covered with a layer of enamel; however if you are concerned about paint transfer we suggest you purchase an item that is lacquered to be on the safe side.