The Magnetic Polydron Class Set contains enough pieces for a classroom of children to share their ideas and inspire their classmates. With 96 magnetic pieces containing over 300 magnets, this set is extremely attractive to teachers and students alike as they can build a large variety of 2D and 3D shapes. The 96 piece set contains 36 Squares, 60 Equilateral Triangles, a Guide and a Tub. Sides of squares measure 2.4". Age: 3+.