1 Pack of Dino World Grow Egg - Assorted Dinosaur Hatching Eggs for Kids. Immerse the Dino eggs in water to reveal a surprise dinosaur figure. Leave in water to grow to its maximum size. Safe & Non Toxic - Each of these dinosaur eggs that hatch in water are made from safe & non toxic polymer. Place the egg for 24 hours to hatch. Leave the growing dinosaur in water for 1-2 days. Educational Toys for Kids - Grow dinosaurs in water and teach kids about the science of water absorption with these growing animals in water for kids. Cool dinosaur eggs with dinosaurs inside. Hands-On Activity - Kids will love the thrill of watching their dino hatching eggs in water crack open, revealing the surprise dinosaur inside. Fun kids toys that grow in water. Dinosaur Themed Gifts & Prizes - This Water Growing Dinosaur Toy is an awesome addition to your Dinosaur Party Favors, Classroom Rewards, and Easter baskets or goodie bags. USA Brand JA-RU Toys. Safe Toys for Kids. Dinosaur Egg Party Favors, Giveaways, Prizes, Goodies, Stocking Stuffers, Rewards, Incentives, Pinata Filler, Birthday Bag, Reward, Carnival Christmas Halloween, Summer Camp. Cool Stuff Toys in Bulk.