12pcs 3D Plastic Math Toys Shaped Geometric Solid Description. Set of geometric solids - learning geometry, volume and relationships between shape, size and volume Transparent 3D shapes include cylinders, pyramids, cubes, rectangular ridges, rectangular cubes, triangular ridges, hexagonal ridges and spheres. The lids can be removed to facilitate filling with solid materials and strengthen the volume measurement concept. Mathematical manipulators, complete with a tray for easy storage School supplies for children from primary schools, teaching aids for geometry Material: plastic. Color blue Specification. Cube : (L) approx. 5 cm / 1.96 inch Rectangle (L*W*H) approx. 5*5*2.5cm/1.96*1.96*0.98in. Cylinder (diameter*height) approx. 5*5cm/1.96*1.96inch Cone (diameter*height) approx. 5*5cm/1.96*1.96in. Triangular ridge (L*H) approx. 2.5*5 cm / 0.98*1.96 in Triangular ridge B (L*H) approx. 5*5 cm / 1.96*1.96 in. Rectangular prism (L*H) approx. 2.5*5cm/0.98*1.96in. Hexagonal ridge (L*H) approx. 2.5*5 cm / 0.98*1.96 in Triangular pyramid (L*H) approx. 5*5 cm / 1.96*1.96 in Rectangular pyramid (length*height) approx. 5*5cm/1.96*1.96in. Ball (diameter (approx. 5 cm / 1.96 in)) Hemisphere (diameter (approx. 5 cm/1.96 in)) The package includes. 12 pieces of fixed geometric toys