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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 fourteen point ninety-six inches in length, eleven point eighty-one inches in width, and six point seven inches in height.
- Q: What materials are used in this rock tumbler kit? A: The rock tumbler is made of high-quality plastic, ensuring durability and longevity during use.
- Q: How much gemstone material is included in the kit? A: The kit includes two point five pounds of raw gemstones and a mix of jasper, providing ample material for tumbling.
- Q: How do you use the National Geographic Hobby Rock Tumbler Kit? A: To use the tumbler, simply follow the simple instructions provided, load the stones and grit into the barrel, then set the one-touch timer.
- Q: Is this rock tumbler suitable for children? A: Yes, this rock tumbler is suitable for children and adults alike, making it a great STEM activity for kids.
- Q: How long does the tumbling process take? A: The tumbling process duration can be controlled using the one-touch timer, allowing you to set it for the desired number of days.
- Q: How do you care for the rock tumbler? A: To keep the rock tumbler in good condition, clean the barrel after each use and ensure it is stored in a dry place.
- Q: Is the tumbler barrel leakproof? A: Yes, the tumbler barrel is designed to be leakproof, preventing any mess during the tumbling process.
- Q: What safety features does the tumbler have? A: The tumbler includes an automatic shutoff feature, ensuring safety by turning off the machine after the set tumbling cycle.
- Q: Can the tumbler be used for other materials besides gemstones? A: Yes, while primarily designed for gemstones, the tumbler can also be used for polishing other small, hard objects.
- Q: How does the noise level compare to other models? A: This tumbler is noise-reduced, making it seventy-five percent quieter than other plastic models, ideal for home use.
- Q: What is included in the tumbler kit? A: The kit includes a tumbler, four polishing grits, a sifter, a learning guide, rough gemstones, and two refill packs.
- Q: Is there a warranty for the rock tumbler? A: Yes, the tumbler comes with a warranty, ensuring customer satisfaction and support for any issues that may arise.
- Q: What age group is this rock tumbler recommended for? A: The rock tumbler is recommended for children aged eight years and up, making it suitable for kids and adults.
- Q: How do you troubleshoot common setup issues with the tumbler? A: If you experience setup issues, ensure that the tumbler is properly assembled and that all parts are securely in place before use.



