Placed in water the 2&3/8" plastic egg gradually cracks open over a period of 48 hours. The endearing and durable penguin is revealed and grows to approximately 3"
Hatches in approximately 48hrs
Great for teaching or just plain fun
Made of polyvinyl acetate and polyacrylamide
Will eventually shrink if removed from water
To re-"grow" at to a bigger penguin, just put it back in water