4 assorted replica specimens in apothecary jars. Jars range in size from 40oz to 2 gallons. Specimens are lifecast durable vinyl rubber. Each kit comes with a vial of Tannic Acid for tinting the water the amber color of formaldehyde. Add at least one cup of alcohol to each jar to prevent moss. Specimens may include fetal pigs, octopuses, fish, squids, lizards, snakes, crabs, lobsters, hearts, brains, hands, and more.