Blue Marble National Geographic (Bulk Grit Media) - Rock Tumbler Grit - 1.5kgs Rock Polishing Grit Media, Works with any Rock Tumbler, Rock Polisher, Stone Polisher, Polishes 8-4.5kg of Rocks
Product ID: 256324920
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📦1.5kg bulk silicon carbide grit
🔄Compatible with all rock tumblers
⚙️4-stage precision grit system
Frequently Bought Together
Description
✨ Transform Rough Rocks into Polished Gems Like a Pro! ⚙️
- STEM APPROVED FUN - High-quality grit that turns rock tumbling into an educational, hands-on experience.
- UNIVERSAL COMPATIBILITY - Works seamlessly with any rock tumbler, including National Geographic’s own.
- USER FRIENDLY PACKAGING - Wide-mouth, screw-top containers make measuring and storing effortless.
- BULK SUPPLY FOR BIG PROJECTS - 1.5kg of premium grit polishes up to 10 lbs of stones—never run out mid-tumble.
- 4 STAGE ROCK TUMBLING MASTERY - From rough shaping to mirror polish, every step covered flawlessly.
The Blue Marble National Geographic Bulk Grit Media is a 1.5kg silicon carbide grit kit designed for all rock tumblers. Featuring a precise 4-stage grit system, it polishes up to 8-10 lbs of rocks, gems, and glass with ease. Packaged in convenient screw-top containers, it’s perfect for hobbyists and STEM learners seeking professional-quality results.
Specifications
| Product Dimensions | 13.97 x 13.97 x 10.8 cm; 1.78 kg |
| Manufacturer recommended age | 8 years and up |
| Item model number | NGBULKGRIT |
| Educational Objective(s) | Learn About Rock Tumbling |
| Language: | English |
| Number of Game Players | 1 |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| tech_spec_battery_description_toys | No batteries required |
| Material Type(s) | glass, glass quartz glass carbide |
| Remote Control Included? | No |
| Radio Control Suitability | home |
| Color | Black |
| Language | English |
| ASIN | B01MRKI4W0 |
Have a Question? See What Others Asked
How many oz is in each container?
I just opened this and finished with grit one, went to put grit 2 in and bottle open and 1/2 full. How do I contact seller?
Can it be used together ?
After each step for the rocks in the kit, my rocks dry with a dull white finish. It doesn't show when it is wet. Am I doing something wrong?
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Customer service was outstanding when I had questions about the product.
2 days ago
The MOLLE sheath is of exceptional quality. Very happy with my purchase.
2 weeks ago
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