National Geographic Hobby Rock Tumbler Kit Product Details ?Turn rough rocks into dazzling gemstones with this rock tumbler ? Kit comes with rough rocks, grit, strainer, and jewelry settings ? Includes a learning guide packed with educational information ? A fantastic kit for kids interested in geology and rock collecting Description The National Geographic Hobby Rock Tumbler Kit is a complete rock polishing kit that allows your kid to turn rough rocks into gemstones. Tumbler kit by National Geographic includes one pound of rough gemstones, eight packets of polishing grit, a storage pouch, and five jewelry fastenings. The tumbler base and motor are built to last and the tumbler barrel is designed to be low-noise and leak-proof. It has a built-in timer and automatic shut-off switch too. Now your kids can create beautiful keepsakes from your favorite specimens. Contains: Does Not Contain Any of the 8 Major Allergens Suggested Age: 8 Years and Up CPSC Choking Hazard Warnings: Choking_hazard_small_parts Educational Focus: Science Includes: Instruction Guide Battery: No Battery Used Buy Minifigures Online, Custom Minifigures, Collectible Minifigures, Action Figures, Minifigure Sets, Lego Minifigures, Mini Action Figures, Superhero Minifigures, Minifigure Accessories, Minifigure Display Case, Rare Minifigures, Movie Minifigures, Custom Lego Figures, Toy Figures for Sale, Exclusive Minifigures, Minifigure Collection, Star Wars Minifigures, Limited Edition Minifigures, Mini Figures for Kids, Minifigure Packs