Magformers Basic Rainbow Clear Solid (30-pieces) Set Magnetic    Building      Blocks, Educational  Magnetic    Tiles Kit , Magnetic    Construction  STEM Toy Set 2 Geometric Shape. Step-by-step idea booklet with builds from all of Rainbow rang. Compatible with all MAGFORMERS shapes and accessories. Neodymium Rare-Earth Magnets for guaranteed connectivity. BPA Free HQABS Plastic.