---
product_id: 646717446
title: "Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit"
brand: "blue marble"
price: "378580CFA"
currency: XOF
in_stock: true
category: "Blue Marble"
url: https://www.desertcart.sn/products/646717446-blue-marble-national-geographic-hobby-rock-tumbler-kit-rock-polisher
store_origin: SN
region: Senegal
---

# 2.5 lbs raw gemstone & jasper mix included 75% quieter noise-reduced barrel Durable motor built to last Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit

**Brand:** blue marble
**Price:** 378580CFA
**Availability:** ✅ In Stock

## Summary

> 💎 Polish your passion, rock your STEM game!

## Quick Answers

- **What is this?** Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit by blue marble
- **How much does it cost?** 378580CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/646717446-blue-marble-national-geographic-hobby-rock-tumbler-kit-rock-polisher)

## 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

- • **Set & Forget Timer:** Automatic shutoff and customizable cycle length make rock polishing hassle-free.
- • **Whisper-Quiet Tumbling:** Noise-reduced rubber barrel cuts sound by 75% for peaceful creativity.
- • **Complete STEM Experience:** Includes tumbler, 4 polishing grits, sifter, learning guide, and 2 gemstone refill packs.
- • **Effortless Gemstone Creation:** Transform rough rocks into dazzling gems with simple one-touch operation.
- • **Award-Winning Educational Fun:** From the Toy Association’s Toy of the Year winner, inspiring creativity and science.

## Overview

The Blue Marble National Geographic Hobby Rock Tumbler Kit is a durable, noise-reduced rock polisher designed for kids and adults aged 8+. It includes everything needed to polish 2.5 pounds of raw gemstones and jasper, featuring a whisper-quiet motor, easy one-touch timer, and comprehensive STEM learning materials. This award-winning kit offers a hands-on educational experience that turns ordinary rocks into sparkling treasures, perfect for budding geologists and creative hobbyists alike.

## Description

Great way to start a rock collection!learn about the exciting hobby of rock tumbling with National Geographic. This set includes everything you need including two bonus rough gemstone refill packs (jasper mix and variety). rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Kids can use the included jewelry fastenings to create beautiful homemade jewelry!contents and features:national Geographic toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.about the National Geographic society:With a mission to inspire people to care about the Planet, the 126-year-old National Geographic society is one of the world's largest nonprofit scientific and educational organizations. National Geographic NET proceeds support vital exploration, conservation, research, and education programs.

## Features

- CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
- BUILT TO LAST - Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Makes an excellent STEM gift or activity for girls and boys!
- EVERYTHING INCLUDED - Tumbler, 4 polishing grits, sifter, Learning Guide, rough gemstones, PLUS 2 one-pound refill packs of rough gems and jasper stones.
- EASY TO USE - Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, so you can set it and forget it. This is a great gift for kids!
- desertcart EXCLUSIVE - Blue Marble has developed this product exclusively for desertcart.
- AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G9MWHGJ |
| Age Range Description | 8 years and up |
| Battery Description | alkaline or rechargeable batteries |
| Best Sellers Rank | #113,398 in Toys & Games ( See Top 100 in Toys & Games ) #2,791 in Science Toys & Kits |
| Brand | Blue Marble |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,190) |
| Educational Objective | STEM |
| Global Trade Identification Number | 00816448025891 |
| Included Components | Rock Tumbler, 2 Packs Gemstones |
| Is Assembly Required | No |
| Item Dimensions | 44.5 x 16.5 x 22 Centimeters |
| Item Type Name | Hobby Rock Tumbling Kit - Rock Polisher for Kids & Adults, |
| Item Weight | 3.62 kg |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | NGHOBBYBUN |
| Manufacturer recommended age | 8 years and up |
| Material | Plastic,Rubber |
| Model Number | NGHOBBYBUN |
| Number of Items | 1 |
| Number of Packs | 4 |
| Size | One Size |
| Sub Brand | National Geographic |
| Theme | Earth Science |
| UPC | 816448025891 |
| Unit Count | 1.0 Count |

## Product Details

- **Age Range (Description):** 8 years and up
- **Brand:** Blue Marble
- **Item dimensions L x W x H:** 44.5 x 16.5 x 22 Centimeters
- **Size:** One Size
- **Theme:** Earth Science

## Images

![Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 1](https://m.media-amazon.com/images/I/81eRSHVQ+aL.jpg)

## Available Options

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

## Frequently Bought Together

- National Geographic Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit
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- My Book of Rocks and Minerals: Things to Find, Collect, and Treasure

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-27*