Activities: Accompany your family or friends to experience the process of making crystal from scratch,help them understand the principle of crystal growth and let them love science. STEAM: Let you understand the world from a different angle,to witness the crystal growth process and develop observation skills. Interesting Experiment: Each colorful crystal is unique and will reach full size in 4 to 7 days by following the detailed instructions,you can learn about the structure and geometry of crystals in this process. Crystal Growing Kit: Complete materials and instructions for each experiment are included with the kit.Perfect for young science enthusiasts,especially those with an interest in geology. Fantastic Gift: The experiment help to understand abstract knowledge and cultivate a hobby of scientific experiments,share with your friends and family,you can have a nice weekend together. Specifications: Color: Red/Blue/Yellow/Green/Purple/White(Optional) Package Size: 10 * 8.5 * 8.5cm/3.9 * 3.4 * 3.4in Package Weight: 200g/7.1oz Note: 1.Including some small parts.Not for children under 3 years. 2.This set is recommended for ages 7 and up with proper protective gear and constant adult supervision. Package List: 1 * Crystal Seed 1 * Stirring Stick 1 * Crystal Growing Powder 1 * Growth Container