The rainbow set is made from 100% handmade natural wood and contains no artificial colors or toxic ingredients. The semi-circular shape of the toy corresponds to the principles of Waldorf education and promotes the creativity and imagination of children. The pieces of the rainbow have the natural color of the wood and have not been varnished. It can be used for sorting, stacking, building and as a decorative element and offers endless possibilities for play and discovery. The rainbow set is durable and can be used for years, making it a sustainable and environmentally friendly toy. It improves children's fine motor skills and hand-eye coordination and can be used alone or in combination with other toys. It is an ideal educational toy for children of all ages that provides fun while promoting development.