Having a pet is cool, especially if it is the Toysmith Ginormous Hatchin' Grow Dino Egg! Follow your own dinosaur from egg to hatchling to a nearly 12 fully grown adult. Simply submerge the 4.5 egg in water and watch its progress over 1224 hours as it hatches and begins growing, and then grow even more! Recommended for ages 5 and up. Imported.Manufacturer model #: 8538. Includes 1 grow dinosaur Assorted dinosaurs Hands-on sensory experience Kids learn about paleontology