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💎 Turn your rocks into show-stopping gems—because ordinary just won’t do!
The National Geographic Rock Tumbler Media Kit is a comprehensive 4-stage silicon carbide grit polishing system enhanced with 1.5 pounds of ceramic media to reduce noise and rock breakage. Featuring the patented GemFoam polishing media, it delivers an unparalleled shine to your tumbled stones. Compatible with all rock tumblers and designed for ages 8+, this award-winning kit combines precision, durability, and STEM education to elevate your rock polishing experience.
| ASIN | B08B7GRBK6 |
| Age Range Description | 8 years and up |
| Best Sellers Rank | 587,507 in Toys & Games ( See Top 100 in Toys & Games ) 331 in Polishing & Buffing 20,117 in Learning & Education Toys |
| Brand Name | Blue Marble |
| Colour | Multi-color |
| Customer Reviews | 4.7 out of 5 stars 2,023 Reviews |
| Educational Objective | STEM |
| Global Trade Identification Number | 00816448027512 |
| Included Components | 1.5 Pounds of Ceramic Media, 10 mL Scoop, 30 g GemFoam, 4 Stages of Silicon Carbide Polishing Grit Compound |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Dimensions | 19 x 13.5 x 13.9 centimetres |
| Item Type Name | Ultimate Rock Polishing Supplies Kit |
| Manufacturer | National Geographic |
| Manufacturer Part Number | NGFOMCERGRIT |
| Material Type | Resin, Foam |
| Maximum Age Recommendation | 1188.0 |
| Minimum Age Recommendation | 96.0 |
| Model Number | NGFOMCERGRIT |
| Operation Mode | Manual |
| Power Source | Unpowered |
| Set Name | Ultimate Rock Polishing Supplies Kit |
| Size | Medium, Small |
| Supported Battery Types | No batteries required |
| Theme | Fantasy |
| UPC | 816448027512 |
| Unit Count | 1.0 count |
S**E
good stuff
exactly as pictured
K**Y
Rock Tumbling kit
I am surprised at how well this kit works. Just follow the instructions and you’ll have wonderfully polished rocks. I bought this kit and a separate tumbler just out of curiosity. I have so many rocks on the shelf now I’m sure my wife is hiding them. Definitely worth the purchase.
L**U
Rock tumbler grit
Did the job. Rocks coming out smooth.
R**T
Quality and functionally.
This kit contains all that is required to produce polished stones of a high standard. The gemfoam gives a quality polish to be proud of. Those who tumble more often may require a bulk buy but this kit would suit most hobbyist.
C**T
Very quiet
Original tumbler had a fault but it was replaced very quickly. Excellent customer service and excellent product. Verrry quiet.
Trustpilot
5 days ago
2 months ago