If you are studying invertebrate classifications like insects, crustaceans, echinoderms, mollusks, and arachnids, this discounted set is what you want. This set includes one of each of our invertebrates "Parts of" materials for Insects (butterfly), Crustaceans (Lobster), Echinoderms (Sea Star), Mollusks (Snail), and Arachnids (Spider).
This is a material that lasts for years and grows with the child.
Item #: SPOINVERT