Ideal for nurseries, early years, kindergartens and reception classes.Build spherical constructions - great for early geometry. A great set to introduce the properties of 2D and 3D shapes and develop spatial awareness at an early age in a fun, engaging and hands-on way. The variety of pieces allows you to build dome-topped cylinders, cylinders, spheres and half spheres. Fits perfectly with Giant Polydron! Length of shortest side measures 200mm. Contains 36 pieces (12 sphere pieces, 12 quadrant pieces and 12 cylinder pieces) in 4 colours. The large and chunky pieces enable children to easily construct really large models. Pieces are lightweight and durable. Use indoors or outdoors. Textured surfaces make the shapes very tactile. Includes braille. Helps children understand spatial awareness. Connection is simple and easy to do.