Toysmith Ginormous Grow Dino Egg ToyGinormous Hatchin' Grow Dino Eggthis 4. 5 In Dinosaur Egg Will Grow Into Nearly A 12 Inch Fully Grown Dinosaur. Place The Ginormous Hatchin' Grow Dino In A Large Container Of Cool Water. Make Sure The Egg Is Fully Submerged. Allow Egg To Sit In The Water Undisturbed For 48 72 Hours. During This Time, The Ginormous Hatchin' Grow Dino Will Break Out Of Its Shell & Begin To Grow! Once The Dino Has Fully Broken Out Of Its Shell, Replace The Old Water With