2 years & up. Durable set of sea creature specimens in shatter-resistant acrylic. Set includes 9 authentic specimens; sea star, shrimp, sea anemone, brown algae, hermit crab, crab, seahorse, tiger barb, and red algae. Double-sided cards featuring detailed images, fun facts, and important information included. The stones fit perfectly inside the Specimen Stone Tabletop Stand for display in classroom centers (sold separately, item 38036).