National Geographic Rough Gemstone Refill Kit for Rock Tumbler

Stock up with National Geographic’s raw gemstone refill kit this gemstone refill kit includes: 9 types of raw gemstones (1 lb in total), 4 courses of polishing grit, 6 jewelry fastenings, 1 learning guide, and our 100% satisfaction. National Geographic toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. About the National Geographic society with a mission to inspire people to care about the Planet, the 126-year-old National Geographic society is one of the world's largest nonprofit scientific and educational organizations. National Geographic net proceeds support vital exploration, conservation, research, and education programs.