GRIMM'S Large Wooden Rainbow NATURAL. This wonderful rainbow features 12 natural wooden arches that can be stacked together or in a variety of ways to build unique towers, tunnels, and structures. A fun stacking game, designed to help develop toddlers hand-eye coordination, logical thinking, counting skills, and balance through fun and hands-on play. Offers plenty of opportunities for kids to get creative and encourages them to play with others. Perfect for kindergartens, schools and other play groups. Set includes 12 half circles in different sizes. Material: FSC Alder wood, oil. Size: circa 36 x 17.5 cm. Recommended age: 3 years +. All Grimm's products comply with the European standard for toy safety, CE marked and EN 71 certified. Sustainably made by hand in Germany.