Set comes in a batch of one dozen eggs that hatch and grow into different types of dinosaurs. Eggs will have different phases as it grows: eggs begin to crack dinosaur starts growing out of its shell then once its fully out may still keep growing. Manufacturered by AMPERSAND SHOPS. Great educational tool! For children 3 years and up Hatch your own dinosaur at home! These dinosaur eggs will amazingly hatch by simply placing them in a bowl of water!