The Hatchin Grow Dino includes 1 water-dissolving egg that reveals a surprise dinosaur inside. Just drop it in water for 48-72 hours and watch to see which dinosaur emerges! Dinosaur figures are squishy and fun to play with once they emerge, and once fully grown, dinosaurs can get up to nearly 12 inches in size. Each package contains 1 egg with 1 surprise dinosaur inside.