Wooden Semi-Circle Building Boards — 12-Piece Rainbow-Color Stacking & Building Set

Twelve flat wooden semi-circle boards in graduated rainbow colors, from a wide base board down to a pocket-sized half-disc. Lay them as floors, roofs and stepping discs over block builds, stack them into a rocking dome, or fan them into ramps and roadways for cars and figures. Each smooth half-disc is a different size and shade, and the set pairs naturally with standard rainbow arch stackers and unit blocks. Open-ended building play with no instructions and no wrong answers — and a bright, tidy stack on the shelf when play is done. Ships free with tracking to the US & Canada, arriving in 6–12 business days.