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💎 Polish your passion, rock your STEM game!
The Blue Marble National Geographic Hobby Rock Tumbler Kit is a durable, noise-reduced rock polisher designed for kids and adults aged 8 and up. Featuring a powerful motor, leakproof rubber barrel that cuts noise by 75%, and a one-touch timer with automatic shutoff, this all-inclusive STEM kit comes with 2.5 pounds of raw gemstones, multiple polishing grits, and educational materials. Winner of the Toy Association’s Toy of the Year Award, it offers a fun, hands-on way to learn geology and create stunning polished stones.





































| ASIN | B07G9MWHGJ |
| Age Range (Description) | 8 years and up |
| Age Range Description | 8 years and up |
| Battery Description | alkaline or rechargeable batteries |
| Best Sellers Rank | #125,220 in Toys & Games ( See Top 100 in Toys & Games ) #3,264 in Science Toys & Kits |
| Brand | Blue Marble |
| Country of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 2,157 Reviews |
| Educational Objective | STEM |
| Global Trade Identification Number | 00816448025891 |
| Included Components | Rock Tumbler, 2 Packs Gemstones |
| Is Assembly Required | No |
| Item Dimensions | 44.5 x 16.5 x 22 Centimeters |
| Item Type Name | Hobby Rock Tumbling Kit - Rock Polisher for Kids & Adults, |
| Item Weight | 3.62 kg |
| Item dimensions L x W x H | 44.5 x 16.5 x 22 Centimeters |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | NGHOBBYBUN |
| Material | Plastic,Rubber |
| Maximum Recommended age | 1188 |
| Minimum Recommended age | 96.0 |
| Model Number | NGHOBBYBUN |
| Size | Medium |
| Sub Brand | National Geographic |
| Theme | Rock Tumbling |
| UPC | 816448025891 |
| Unit Count | 1.0 Count |
D**E
Love it
J**A
Buen producto
Muy bien producto hasta ahora me a encantado
H**H
Great for beginners
N**R
Wrong power cord
J**S
Awesome Nat Geo Customer service!!
Trustpilot
2 months ago
1 week ago