National Geographic Explorer Rock Tumbler

Transform rough rocks into gorgeous polished gems! A great STEM gift for future geologists and earth scientists, this kit has everything kids need to turn ordinary rocks into polished gemstones. Don't worry, parents! The durable motor and sturdy base are built to last, while the upgraded barrel is designed to be extra-quiet and leak-proof. A built-in timer and automatic shut-off make it safe and hassle-free. Simply plug into any standard wall outlet with the included AC adapter for consistent, reliable tumbling. And when the gems are ready, jewelry fastenings let kids turn their favorite finished stones into one-of-a-kind keepsakes. Kit includes: 1 high-quality Tumbling Machine; 1 upgraded leak-proof Tumbling Barrel; 1 bag of Rough Gemstones (0.55 pounds); 4 bags of Polishing Grits (0.7 ounces each); 1 Rock Strainer; 5 Jewelry Settings; Instructions and Learning Guide, which teaches about natural rock polishing processes and more. From Blue Marble for ages 8+ yrs.

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