Allows children to explore the worlds of shape, space and magnetism, all in one exercise. Magnetic Polydron combines the fun of construction with lessons of 3D shapes and also polarity, now an essential resource for polygons and polyhedra in Y3. The pieces are coloured black on one side with bright colours (red, green, blue and yellow) on the reverse. Class pack of 96 pieces - 36 squares and 60 triangles.