---
product_id: 739608323
title: "NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock"
brand: "blue marble"
price: "₨1393"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/739608323-national-geographic-stone-rotating-drum-complete-media-kit-stone-polishing
store_origin: LK
region: Sri Lanka
---

# 6 reuse cycles max reusable mesh storage bag patented polishing foam NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock

**Brand:** blue marble
**Price:** ₨1393
**Availability:** ❌ Out of Stock

## Summary

> ✨ Elevate your rock game with the ultimate shine booster! 🪨

## Quick Answers

- **What is this?** NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock by blue marble
- **How much does it cost?** ₨1393 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/739608323-national-geographic-stone-rotating-drum-complete-media-kit-stone-polishing)

## Best For

- blue marble enthusiasts

## Why This Product

- Trusted blue marble brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **STEM-Approved Quality:** Backed by National Geographic’s trusted STEM series, ensuring fun and educational rock polishing.
- • **Unmatched Shine Boost:** GemFoam delivers an unprecedented, mirror-like polish after your final grit cycle.
- • **Effortless Repolishing:** Simply add GemFoam post-grit cycle and tumble up to 3 days for a brilliant finish.
- • **Universal Compatibility:** Works seamlessly with any rock tumbler, especially optimized for National Geographic kits.
- • **Long-Lasting Performance:** Use each GemFoam pack up to 6 tumbler cycles—maximize value and results.

## Overview

The National Geographic GemFoam Stone Polishing Kit features patented polishing foam media designed to enhance the shine of tumbled rocks. Compatible with all rock tumblers and reusable up to 6 cycles, it includes a convenient mesh bag for storage. Ideal for hobbyists aged 8+, this kit offers a simple, effective way to achieve professional-grade polish while supporting STEM learning.

## Description

Product Description               National Geographic GemFoam Rock Tumbling Media makes tumbled rocks more brilliant than ever. Kit includes: 30 gram GemFoam, mesh storage bag, and easy to follow instructions. After the last grit polishing cycle is completed, simply add the patent pending GemFoam to your tumbler and the rocks will shine in just a few days. GemFoam is a truly unique way to improve your rock tumbling results and use it in any tumbler. GemFoam is reusable up to 6 times and is easy to use, clean and store thanks to its reusable mesh storage bag. For best results, use with National Geographic's tumblers and rock tumbling accessories such as ceramic pellet media, barc tumbling grit, rock refill packs. National Geographic Toys manufactures the highest quality hands-on science toys and every product is backed by exceptional service. About the National Geographic Association: With a mission to inspire people who care about the planet, the National Geographic Association is one of the largest non-profit science education organizations in the world.                  Safety Warning               No Warning

## Features

- A new way to brighten up your tumbled rocks! GemFoam is a unique new rock polishing medium that gives your tumbled locks an unprecedented shine. After the final grit cycle, simply add the patent-pending rock polishing media to your tumbler and get great results
- Use it as a little as it is for a long time. Add GemFoam packs to your Rock Tumbling Arsenal for use in multiple tumbling projects. GemFoam can be reused with up to 6 locking tumbler cycles. Comes with a convenient reusable mesh bag for easy storage
- Works with any rock tumbler. GemFoam is safe to use on any rock tumbler. For best results, use with your National Geographic Rock Tumblers and Rock Tumbling Supplies, including ceramic media, tumbling grit and rock refill packs
- Easily improve the results of locking tumbling. Once the last rock tumbling grit cycle is completed, you can repolish your GemFoam, water, and stones back into the tumbler and tumbled for up to 3 days. The stones will be polished and shiny
- Satisfaction Guaranteed. National Geographic STEM Series offers quality products that are full of fun. If your experience is less than special, please let us know. We will make it right

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | NGFOMBAG |
| Number of Game Players | 1 |
| Batteries Required? | No |
| Material Type(s) | Foam |
| Target Gender | Unisex |
| Manufacturer recommended age | 8 years and up |
| Release date | July 15, 2020 |
| Item model number | NGFOMBAG |
| Product Dimensions | 11.99 x 3 x 18.49 cm; 50 g |
| ASIN | B08B7DJTCR |

## Images

![NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock - Image 1](https://m.media-amazon.com/images/I/91m41LKELdL.jpg)
![NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock - Image 2](https://m.media-amazon.com/images/I/816DV5+iFwL.jpg)
![NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock - Image 3](https://m.media-amazon.com/images/I/91ysfSI9KtL.jpg)
![NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock - Image 4](https://m.media-amazon.com/images/I/910jbpCJ6tL.jpg)
![NATIONAL GEOGRAPHIC Stone Rotating Drum Complete Media Kit Stone Polishing Grit Ceramic Pellets Patented Polishing Foam Stone Polishing Kit Madagascar Rock - Image 5](https://m.media-amazon.com/images/I/81sas-bF6dL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Blue Marble National Geographic Rock Tumbling Media – GemFoam Reusable Rock Polisher Foam, Use After Rock Tumbling Grit Cycles, Adds Shine to Tumbled Rocks and Minerals, Rock Tumbling Supplies
- 2 LBS Rock Tumbling Ceramic Filler Medi Rock Tumbling Ceramic Filler Media Non- Abrasive Ceramic Pellets for All Type Tumblers 3/16" X 3/8"
- 3LB Rock Tumbler Grit and Polish Refill Set, 4-Step Professional Polish Rock Tumbler Grit to Unlock Stunning Polished Stones. Ideal for National Geographic, KomeStone, and Other Polishers and Tumblers

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**Shop now:** [https://www.desertcart.lk/products/739608323-national-geographic-stone-rotating-drum-complete-media-kit-stone-polishing](https://www.desertcart.lk/products/739608323-national-geographic-stone-rotating-drum-complete-media-kit-stone-polishing)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-21*