Magformers Classic Set (62-pieces) Magnetic    Building      Blocks, Educational  Magnetic    Tiles Kit , Magnetic    Construction  STEM Set Engage Mathematical and Scientific Thinking, Deductive Reasoning and Spatial Awareness. Includes 62 pieces; 20 triangle, 30 squares, 12 pentagons. Neodymium Rare-Earth Magnets for guaranteed connectivity. ABS plastic magnets conform to CE, ASTM, and EN86 Compatible with all shapes and accessories. Set comes in color combinations: yellow/blue or red/purple (colors vary) Engage Mathematical and Scientific Thinking, Deductive Reasoning and Spatial Awareness ABS plastic magnets conform to CE, ASTM and EN71