Geometry 3D Concepts Instruments Introduce Students to Solid geometry and investigate shapes, faces, vertices, edge, curves and angel with this 17-piece set of transparent plastic Shapes. These Large geometrical shapes ad a tactile element to geometry lessons .Each shape has a 10 cm dimension, illustration relationships between area, volume, shape and size. Transparent plastic shapes include: cone, sphere, hemisphere, cube, cylinder, rectangular prism, hexagonal prism, triangular prism and square pyramid and many more. (Measure 10 Cm .set Of 17 Figures With lid)