Magformers Magnets in Motion Set (37-pieces) Magnetic    Building      Blocks, Educational  Magnetic    Tiles Kit , Magnetic    Construction  STEM gear science Toy Set Perfect beginning set that includes gear accessories, rectangles, squares and super rectangles. Add Movement to any Set! Neodymium Rare-Earth Magnets for guaranteed connectivity. ABS plastic magnets conform to CE, ASTM, and EN88 Compatible with all shapes and accessories. ABS plastic magnets conform to CE, ASTM and EN71 Colorful, Spinning Gears and Crank Add Movement to any Magformers Set! Engineer dozens of crazy contraptions! Engage Mathematical and Scientific Thinking, Deductive Reasoning and Spatial Awareness