The spherical system for any classroom allowing you to build over 24 different models together. Analyse and dissect the sphere by building 8 different models from this one set. This exercise can also be carried out with cylinders and cones. 276 pieces (36 sphere segments, 96 quadrants, 48 cone segments, 36 rectangles, 20 squares and 40 right-angled triangles) in a storage box with activity booklet.