This set consists of 12 pieces of wooden geometric solids. The set is made of smooth hardwood andare used to teach shapes recognition and to increase geometric understanding. The set includes a selection of the following geometric shapes: tetrahedron, cube, cylinder, square pyramid, cone, square prism or rectangular prism, square, circle, hemisphere, ovoid, wedge or trapezoidal prism, oblique square pyramid, oblique cone and tustrum of a cone. The pieces range in size from 5 to 7.6cm.(Note: contents of each set may differ). Supplied in a set of 12. Ages 7+ years