Fantistic! Just place then in a bowl of water (>100℉), a mini dinosaur would brack up the shell in 7-8 hours. Note: It takes eight hours to soak in cold water to fully crack,and hatch and these dinosaur figures will keep growing up in 1- 2 days.
With this several days of hatching and growing , children will learn a lot about how life comes, and be more patient. Great set for individual play or as a group activity. It fascinates children as soon as they pull it out of the box and is a perfect STEM project. It fosters a love for science and paleontology in a fun and exciting way.