Rock Tumbler Refill Pack: Jasper Mix Accessories Science-inspired design references the periodic

Science-inspired design references the periodic table element niobium with the symbol Nb and atomic number 41

nature-based design that highlights the complexity and beauty of insect life and natural form

making every clue feel like a step toward freedom

Compact but expressive — easy to place on a shelf

Rock Tumbler Refill Pack: Jasper Mix Accessories Science-inspired design references the periodicRock Tumbler Refill Pack lets kids continue their gem polishing adventure with a variety of jasper stones and all the supplies needed to create polished gems and jewelry. Why youll love this: Includes 8 varieties of jasper stones for tumbling and polishing Comes with 4 courses of polishing grit for professional looking results Includes 6 jewelry fastenings to make necklaces, bracelets, or other creations Encourages hands on learning about rocks,