Grimm's Building Boards - RainbowThe Grimms Rainbow Building Boards transform playtime into a vibrant architectural adventure. With 11 solid lime wood pieces in bright rainbow colours and varying sizes, children can explore stacking, arranging, and designing in bold, colourful patterns. The set can be used independently as a creative floor puzzle or combined with other Grimms 44 scale sets, including the 12 piece rainbow set, to build imaginative dollhouses, towers, bridges, and