Explore an exciting new method of magnetic construction with Polydron HashMag. The unique shapes in 6 stunning translucent colours are ideal for developing fine motor skills and exploring the construction of 2D nets and 3D models. Polydron HashMag has a colour coding system to help develop an understanding of polarity and is compatible with Magnetic Polydron.Designed for individual or small group use this 24 Piece Class Set contains 12 triangles and 12 squares.Building guide included for inspiration.