Magformers Vehicles Dynamic Wheel Set (79-piece) Magnetic    Building      Blocks, Educational  Magnetic    Tiles Kit , Magnetic    Construction  STEM Set includes wheels 9 Geometric Shapes & 12 Accessory pieces Step-by-step idea booklet Compatible with all MAGFORMERS shapes and accessories Neodymium Rare-Earth Magnets for guaranteed connectivity BPA Free HQABS Plastic