1. ROCK COLLECTION: This set includes 24 pieces of natural rocks and minerals, the perfect standalone collection or addition to any child's rock collection. 2. RECOGNIZE AND LEARN – The full-color educational guide contains information about each gem included and you can use the magnifying glass to see more details of each stone, gemstone and crystal. Great starter kit for boys and girls interested in geology. 3. CONVENIENT STORAGE AND DISPLAY: The included well-made packaging has a separate compartment for each sample. Each of them named and allows you to see all the samples inside. 4. GREAT IDEA FOR PREZENT EDUCATIONAL: This unique and educational rock collection is a great prezent for children who are interested in geology. Also great for beginners or experienced gemstone collectors. And this can be used in classes, to decorate the house, to inspire the imagination.