Crystal Growing Kit: Make your child a real chemist by mixing the special ingredients and watching the crystal grow day by day. Science Experiments for Kids: It fascinates children as soon as they take it out of the box,and it's really a perfect STEM project. Amazing Educational Gift: Perfect gift for Age 8 and up, ideal birthday and Christmas gifts for adults and children. Fun Family Activity: Enjoy a real scientific experiment with your kids at home, and engage them in a simple but meaningful educational activity. Grow Your Own Crystal: Follow along with the instruction manual to grow 5 crystals. The growth time of crystal is 1-5 days.