Made of durable flexible plastic each  Folding Net folds into a different 3D shape. Demonstrate shape properties and relationships and enhance spatial reasoning skills in measurement volume and surface area. Each set includes 11 transparent plastic solids and 11 nets (cone cube cylinder hexagonal prism hexagonal pyramid pentagonal prism pentagonal pyramid rectangular prism square pyramid triangular prism triangular pyramid). Perfect for whole-class and individual instruction as well as activity centers and after-school programs! Recommended Age(s): 9-17.