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💎 Sparkle smarter, not harder — your gateway to gem greatness!
The Blue Marble National Geographic Rock Tumbler Starter Kit (2016 Release) is a beginner-friendly, all-in-one rock polishing system featuring a reliable motor and leak-proof barrel. It includes ½ pound of nine types of real rough gemstones, four polishing grits, jewelry fastenings, and an educational guide, making it perfect for STEM enthusiasts aged 8 and up to create polished stones and custom jewelry with ease.
| ASIN | B01I56RV0C |
| Age Range (Description) | 8 years and up |
| Age Range Description | 8 years and up |
| Best Sellers Rank | #86,028 in Toys & Games ( See Top 100 in Toys & Games ) #2,287 in Science Toys & Kits |
| Brand | Blue Marble |
| Country of Origin | USA |
| Customer Reviews | 4.2 out of 5 stars 10,694 Reviews |
| Educational Objective | STEM |
| Global Trade Identification Number | 00816448020391 |
| Included Components | 5 Jewelry Fastenings, Leak-proof, rubber-lined tumbler barrel, Rock Tumbler, ½ pound of stones and four levels of grit |
| Item Dimensions | 27.9 x 13.2 x 30.5 Centimeters |
| Item Type Name | Beginner's Rock Tumbler |
| Item Weight | 1.9 Kilograms |
| Item dimensions L x W x H | 27.9 x 13.2 x 30.5 Centimeters |
| Manufacturer | Discover with Dr. Cool |
| Manufacturer Part Number | NGTUMBLER2 |
| Manufacturer Warranty Description | 30 day warranty against manufacturer defects |
| Material | Silicone |
| Minimum Recommended age | 96.0 |
| Model Number | NGTUMBLER2 |
| Size | 1 Count (Pack of 1) |
| UPC | 816448020391 |
| Unit Count | 1 Count |
S**A
Doesn't close after first time.
Doesn't close after first time. Too much Waste of money. Rubber gets loose tooo. Thats enough review for the first time
Trustpilot
2 weeks ago
1 month ago