This large set of 17 transparent 3D geo-figures can be used to explore volume, surface area and nets in group or classroom settings. Removable lids and stoppers allow for volume comparisons using liquid or solid materials. Lids can also be used for 2D shape investigations. Contains 2 cubes, a cone, 6 prisms, a sphere, a hemisphere, 2 cylinders, 4 pyramids. All figures measure 10cm in height or diameter.