National Geographic Hobby Rock Tumbler has everything you need to create polished gemstones: the rock tumbler, four polishing grits, sifter, nine types of rough gemstones ready to polish, plus a detailed full-color learning guide. Makes a great gift for kids!
Evaluation comments:
“I have wanted to try rock tumbling for a long time. My kids and I took turns using the tumbler and we all really enjoyed it.”
“Extremely satisfying turning out smooth shiny rocks”
“My kids and I enjoyed picking our rocks. The more work it looks like it needs the better! Grinding the rock down until it was smooth was great. We found it extremely relaxing and enjoyable.”
“Great quality and fun to use.”
“Really enjoyable and I can see how people can really get into rock tumbling as a hobby.”