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View compareFrequently Asked Questions
- Q: What are the dimensions of the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit? A: The dimensions are thirteen point eleven inches long, five inches wide, and eight point fifteen inches high. This size makes it suitable for various setups.
- Q: What materials are used in the rock tumbler? A: The rock tumbler is made from multiple materials, ensuring durability and effective performance in rock polishing. It features a leak-proof barrel with a stainless-steel lid.
- Q: How much rough rock is included in the kit? A: The kit includes half a pound of rough rocks. This provides plenty of material for beginners to start their rock polishing journey.
- Q: How do I use the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit? A: To use the tumbler, simply place the rough rocks and tumbler grit inside, secure the lid, and set the timer. The tumbler will do the rest.
- Q: Is this rock tumbler suitable for kids? A: Yes, this rock tumbler is designed as an educational STEM science kit for kids. It provides a hands-on geology experience while being safe for use.
- Q: Can I use the GemFoam polishing foam with this tumbler? A: Yes, the tumbler kit includes innovative GemFoam, which enhances the shine of the gemstones after the tumbling process. It's reusable and easy to apply.
- Q: How do I clean the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit? A: To clean the tumbler, rinse the barrel and lid with water after use. Make sure to dry them thoroughly to maintain their condition and prevent rust.
- Q: Is the rock tumbler safe to use indoors? A: Yes, the hobby rock tumbler is safe for indoor use. Just ensure it is placed on a stable surface to minimize vibrations during operation.
- Q: How should I store the rock tumbler when not in use? A: Store the rock tumbler in a dry place, away from moisture and direct sunlight. Keeping it in its original packaging can also help protect it.
- Q: Is this rock tumbler beginner-friendly? A: Yes, the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit is designed for beginners. Its simple operation and included instructions make it easy to start.
- Q: What types of gemstones are included in the kit? A: The kit contains nine different types of gemstones. This variety allows users to experiment and create their unique gemstone collection.
- Q: What is the warranty on the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit? A: The product is backed by exceptional service, ensuring customer satisfaction. If you encounter issues, the manufacturer will assist you.
- Q: What if the tumbler arrives damaged? A: If the tumbler arrives damaged, contact customer service immediately for assistance with returns or exchanges. They will guide you through the process.
- Q: Can I use the tumbler for other materials besides rocks? A: No, this tumbler is specifically designed for rock polishing. Using other materials may damage the tumbler and affect its performance.
- Q: How long does the tumbling process take? A: The tumbling process can take up to seven days, depending on the desired level of polish. The built-in timer helps you keep track.
- Q: Is there any assembly required for the tumbler? A: No, the NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit comes fully assembled. You can start using it right out of the box.

