The perfect learning method allows children to experience incredible scientific wonders through hands-on projects, and therefore like to explore scientific wonders in science. A quality study guide will teach your child the interesting science behind this experiment. You can get real crystals, and you can add the finished product to the rock collection It fascinates children, and it inspires a love of science in a fun and exciting way. This is a great way to improve their patience, concentration and practical skills. Package dimensions: 20 x 15 x 8 cm For Age: 10+ years Returns Policy available here.