This is a Fossil Collection Kit with 12 different specimens. They include, Gastropod, 2 kinds of Trilobites, Crinoid Stem, Pelecypod, Brachiopod, Horn Coral, Shark Teeth, Ammonite, Petrified Wood, Dinosaur Bone and Fossil Algae.  Each of these items comes with its own detailed description. A great gift for kids or to add to your own collection.