Giant Allosaurus Dinosaur Hatching Egg Easter Surprise Clade-Gravim Growing Dino This Giant Allosaurus Dinosaur Hatching Egg, hatches and gives you a toy dinosaur to play with. The Clade-Gravim Giant Pink Hatching Egg contains one Allosaurus. Egg measures 4.5 x 3 inches. Hatching takes about 24-48 hours or more, to crack, in the Giant Allosaurus Dinosaur Hatching Egg, after the egg cracks the baby dinosaur will continue to grow for 72 hours or more. Instructions are included in the packaging for the hatching eggs. Enjoy this hatching, growing dinosaur egg for your Easter Egg hunt, what a surprise this will be with this Giant Allosaurus Dinosaur Hatching Egg.