Rainbow Window Block Set - 15 piecesThe Rainbow Window Block Set 15 Pieces is a captivating construction resource that combines the timeless appeal of wooden blocks with the sensory wonder of colour and light. Each block is crafted from smooth, durable natural wood and features a vibrant transparent insert in assorted rainbow colours. This unique design encourages children to explore building, stacking, and balancing while also experimenting with light, colour mixing, and shadow play.