These dinosaur figurines grow sparkling crystal spikes overnight! Everything you need for this easy and fun science project is included. You can watch the process of crystallization over the course of 24 hours as your three dinos grow amazing crystal spines on their backs. They’re a spectacular feat of science – display them in your favourite space when you’re done for a brilliant pop of colour. Includes 3 dinosaur models, 3 colours of crystal powder, 3 stirring sticks, growing container and instruction manual. 8+ years.