This large set includes 10 big transparent geometric solids (height 15 cm) with removable bases, central axes, and cross-sections: square prism, square pyramid, cube, triangular prism, triangular pyramid, octagonal prism, octagonal pyramid, cylinder, cone, and sphere. Thanks to the 1:2 dimension ratio (edge 7.5 cm : height 15 cm), the set is perfect for calculating volume and surface area and for visual shape comparisons.
The transparent design lets you see inside the solids, observe cross-sections, and work with the central axis. The option to fill with water or sand makes it easier to grasp volume and relationships between shapes in a hands-on way. Durable materials and precise workmanship are suitable for everyday classroom use and home study.