Win Nat Geo Rock Tumbler!
Details of this
Transform rough rocks into extraordinary gemstones with the National Geographic Starter Rock Tumbler kit.
Fill the leak-proof barrel with the rocks and grit provided, and then tumble away. The machine will transform them into nine different types of beautifully polished gemstones. If you like you can attach them to the five fastenings provided to make your own jewellery!
How to enter
For your chance of winning, all you need to do is answer the question and enter your details and answer the question. Good luck!