NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit 3lbs Gemstones of 9 Varieties Including Tigers Eye Amethyst Quartz 4 Grades of Grit Jewelry Fastenings Detailed Learning Guide

Stock Up with National Geographic’s Mega Gemstone Refill Kit This Gemstone Refill Kit Includes:- 9 types of raw gemstones (3 lbs in total)- 4 courses of polishing grit- 6 jewelry fastenings- 1 full-color learning guide National Geographic Toys is proud to provide a 100% satisfaction guarantee 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 131-year-old National Geographic Society is one of the world's largest nonprofit scientific and educational organizations. National Geographic's net proceeds support vital exploration, conservation, research, and education programs.