Amaze your child with this Set of 2 Ginormous Hatchin' Grow Dino Eggs. Just submerge the eggs in water and do not disturb them for 48-72 hours. During this time, the dino will break out of its shell and start to grow. Fully grown dinosaurs reach nearly 10" high. Assorted dinosaurs; let us choose for you. Egg, 3-1/4" dia. x 4-1/4"H, each. Dino, up to nearly 10"H. ABS resin and EVA. For ages 5 and up.