A mixed set of three unique systems of Polydron framework and Sphere to create the ultimate geometric construction system.The set contains 260 pieces: Polydron - 100 equilateral triangles 42 squares and 2 right angled triangles; Frameworks - 40 pentagons and 30 hexagons; Sphera - 12 spheres 6 cylinders 22 quadrants and 6 cone pieces.Packed in a storage container with an exploring booklet.