






💎 Turn rough rocks into polished treasures—because your creativity deserves the best!
The National Geographic Rock Tumbler Kit features a durable motor with adjustable speed and timer, a leak-proof stainless steel barrel that operates 75% quieter than plastic, and a generous 3-pound capacity. It includes 3 lbs of rough gemstones, four polishing grits, jewelry fastenings, and innovative reusable GemFoam for a brilliant shine. Designed for STEM learning and creativity, this award-winning kit is perfect for aspiring geologists and jewelry makers aged 8 and up.





| Educational Objective(s) | STEM, Concept Development Skills, Hand-Eye Coordination, Critical Thinking, Reasoning Exploratory Skills |
| Language: | English |
| Model Number | NGTUMBLER3LB |
| Assembly Required | No |
| Batteries Required | Yes |
| Batteries Included | No |
| Material Type(s) | Plastic Stainless Steel |
| Remote Control Included? | No |
| Product Dimensions | 32.4 x 26.2 x 17 cm; 3.7 kg |
| Item model number | NGTUMBLER3LB |
| Manufacturer recommended age | 8 years and up |
| Manufacturer | JMW Sales, Inc. |
| Item Weight | 3 kg 700 g |
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