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Explore an exciting new method of magnetic construction with HashMag Polydron. The unique shapes, in 6 stunning translucent colors, are ideal for developing fine motor skills and exploring the construction of 2D nets and 3D models. These uniquely shaped pieces will help you to create stunning models that catch the light in new ways. HashMag has a color coding system to help develop an understanding of polarity and is compatible with Magnetic Polydron. Designed for a whole class to use, this 72 Piece Class Set contains 36 triangles and 36 squares. Building guide included for inspiration. Age 3+.