Specification: Material: paper, plastic Weight: 0.3kg Size: 21*16*4cm Packing: carton Features: 1. ROCK COLLECTION: This kit includes 24pcs natural rocks and mineral, perfect standalone collection or addition to any kid’s rock collection. 2. IDENTIFY AND LEARN – A full-color learning guide has information on each gems in the set and you can use your magnifying glass to see more details of each rock, gemstone, and crystal. Great starter set for boys and girls with an interest in Geology. 3. CONVENIENT STORAGE AND DISPLAY: The included well-made package has a separate compartment for each specimen. Each one has named and allows you to see all the samples inside. 4. GREAT EDUCATIONAL GIFT IDEA: This unique & educational rock collection is a great gift for kids who is interested in geology. Also great for the beginner or seasoned gemstone collector. And this can be used on the class, home decoration, inspire your imaginations . 5. Recommended for ages 8 years and up. Package Includes: 1 * Rocks Collection Kit Notes: 1. 1 inch = 2.54 cm 2. Please allow 2-3cm error due to manual measurement. Please make sure you do not mind before purchasing. 3. Color may not appear as exactly as in real life due to variations between the computer monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store