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💎 Turn Rough Rocks into Polished Masterpieces — Your Personal Gem Studio Awaits!
The Blue Marble National Geographic Hobby Rock Tumbler Kit is a durable, all-in-one rock tumbling system designed for beginners and enthusiasts alike. Featuring a motor with adjustable time and speed controls, a leak-proof stainless steel barrel, and an innovative reusable GemFoam polishing foam, it transforms rough stones into brilliantly polished gemstones. The kit includes one pound of rough rocks with nine gemstone varieties, polishing grit, jewelry fastenings, and a strainer, making it a perfect blend of STEM education and creative craftsmanship.
| ASIN | B086Z6ZB7R |
| Age Range Description | 8 years and up |
| Battery Description | Not required (mains powered) |
| Best Sellers Rank | #105,987 in Kitchen ( See Top 100 in Kitchen ) #1,513 in Tumblers & Water Glasses |
| Brand Name | Blue Marble |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,602) |
| Educational Objective | Geology and Creative Thinking |
| Included Components | 1/2lb rough rocks, 4 Stage Grit, Original GemFoam Polishing Media, toys |
| Is Assembly Required | No |
| Item Dimensions | 33.3 x 12.7 x 20.7 centimeters |
| Item Type Name | toys |
| Item Weight | 1.9 Kilograms |
| Language | English |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Maximum Age (MONTHS) | 120 |
| Manufacturer Minimum Age (MONTHS) | 12.0 |
| Manufacturer Part Number | NGHOBBYTUMBLER2 |
| Manufacturer Warranty Description | No Warranty |
| Material Type | Cotton |
| Model Number | NGHOBBYTUMBLER2 |
| Size | One Size |
| Sub Brand | National Geographic |
| Theme | Geology |
| UPC | 816448028830 |
| Unit Count | 1 Count |
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