The Grimm's Rainbow Semi Circles are an extra large creative puzzle to be played on the floor. Your little architects can create buildings and towers, cakes, amphitheatres, dollhouses and more. Use the semi-circles on their own to learn shapes and colours and to make patterns and pictures. Creators of the iconic stacking rainbow and one of the most innovative European toy makers, German-based company Grimm's creates unique wooden toys that are as beautiful sitting on the shelf as they are fun to play with. Proven winners from teething babies to daycares to adult therapies, each toy is thoughtfully created for open-ended, unplugged play for years to come.