







💎 Polish your passion, rock your world!
The National Geographic Starter Rock Tumbler Kit is a durable, leak-proof rock polisher designed for kids 8+ and beginners. It includes a powerful motor, a rubber-lined barrel for quiet operation, ½ pound of rough stones featuring nine gemstone varieties, four-stage polishing grit, and jewelry fastenings. This all-in-one STEM kit combines hands-on geology education with creative fun, backed by a satisfaction guarantee.







| Product Dimensions | 27.9 x 13.2 x 30.48 cm; 1.9 kg | 
| Manufacturer recommended age | 8 years and up | 
| Item model number | NGTUMBLER2 | 
| Educational Objective(s) | Geology, Process Understanding, Critical Thinking, Scientific Inquiry | 
| Language: | German | 
| Number of Puzzle Pieces | 30 | 
| Assembly Required | No | 
| Batteries Required? | No | 
| Batteries Included? | No | 
| Material Type(s) | Silicone | 
| Material Care Instructions | See Included Manual | 
| Remote Control Included? | No | 
| Radio Control Suitability | Home, Travel | 
| Color | Original Version | 
| Release date | 13 October 2017 | 
| ASIN | B01I56RV0C | 
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