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✨ Transform Rough Rocks into Polished Masterpieces ⚙️
The Blue Marble National Geographic Bulk Grit Media is a premium 4-stage silicon carbide grit kit designed to polish 8-10 pounds of rocks, gems, and glass. Compatible with all rock tumblers, it includes a precise 10 mL scoop and secure storage containers, delivering professional-grade results for hobbyists and STEM enthusiasts alike.


| ASIN | B01MRKI4W0 |
| Age Range Description | 14 years and up |
| Best Sellers Rank | #26,555 in Kitchen ( See Top 100 in Kitchen ) #322 in Tumblers & Water Glasses |
| Brand Name | Blue Marble |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (13,656) |
| Educational Objective | Learn About Rock Tumbling |
| Global Trade Identification Number | 00816448020636 |
| Included Components | 10 mL Grit Scoop, 4 Stages of Rock Polishing Grit, Rock Tumbling Instructions |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Dimensions | 14 x 14 x 10.8 centimeters |
| Item Type Name | with any Rock Tumbler, Rock Polisher, Stone Polisher, Polishes 8-10 Pounds of Rocks |
| Item Weight | 1.78 Kilograms |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Maximum Age (MONTHS) | 1188 |
| Manufacturer Minimum Age (MONTHS) | 96.0 |
| Manufacturer Part Number | NGBULKGRIT |
| Material Type | Carbide of Silicon |
| Model Number | NGBULKGRIT |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | battery_powered |
| Set Name | Bite Set with Stone |
| Size | M |
| Sub Brand | NATIONAL GEOGRAPHIC |
| Subject Character | no subject character |
| Supported Battery Types | No batteries required |
| Theme | Science |
| UPC | 816448020636 |
| Unit Count | 1.0 Count |
F**M
It helps shaping stones too..it is a little sound and I'm living 2floor so I put a box on it to make the noise more silent
M**E
Passt und erfüllt seinen Zweck
A**X
El proceso de pulir piedras es algo largo, pero el producto hace su labor. Viene suficiente cantidad para varias tandas y es muy sencillo de usar, ya que cada paso esta numerado.
V**Z
As advertised
C**N
C'est un petit investissement, j'aurai aimé pouvoir acheter pot par pot car je n'utilise que le n°1 et n°3, mais ça reste très efficace, bon rapport quantité/qualité/prix. Et une seule cuillère c'est dommage car il reste toujours un peu de poudre quand on la vide donc on contamine un petit peu les autres pots... Mais ce n'est qu'un détail.
Trustpilot
1 month ago
3 days ago