You can take care of your very one baby dino, even before it hatches, with this great toy!! Just place it in a large container of cool water (make sure the egg is fully submerged). Allow the egg to sit undisturbed in the water for 48-72 hours. During this time the 4.5" inch Ginormous Hatchin Grow Dino will break out of its shell and begin to grow! Once the dino has fully broken out of its shell replace the old water with fresh water and watch the dino grow and grow!! Neat toy for your favorite young dinosaur fan!!