---
product_id: 371552959
title: "Blue Marble NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit"
brand: "blue marble"
price: "€ 243.41"
currency: EUR
in_stock: true
reviews_count: 8
category: "Blue Marble"
url: https://www.desertcart.gr/products/371552959-blue-marble-national-geographic-professional-rock-tumbler-kit-complete-rock
store_origin: GR
region: Greece
---

# GemFoam polish for dazzling shine 75% quieter noise-reduced barrel Auto shutoff timer for perfect precision Blue Marble NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit

**Brand:** blue marble
**Price:** € 243.41
**Availability:** ✅ In Stock

## Summary

> 💎 Rock your world with precision polish and silent power!

## Quick Answers

- **What is this?** Blue Marble NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit by blue marble
- **How much does it cost?** € 243.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/371552959-blue-marble-national-geographic-professional-rock-tumbler-kit-complete-rock)

## 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

- • **Create Custom Jewelry:** Includes necklace, ring, keychain & clip-on earring fastenings—turn your polished gems into wearable art.
- • **Whisper-Quiet Operation:** Experience 75% less noise with our innovative leak-proof, sound-dampening barrel—perfect for home or office.
- • **All-Inclusive Gemstone Kit:** 453g of 9 unique global stones plus 4 grit levels to master every tumbling stage like a pro.
- • **Precision Power-Saving Timer:** Set your ideal tumble time and relax—auto shutoff ensures flawless results every cycle.
- • **Revolutionary GemFoam Polish:** Add a brilliant, reusable shine with patented GemFoam—your stones will outshine the rest.

## Overview

The National Geographic Professional Rock Tumbler Kit is a complete, high-quality STEM science set designed for serious rock tumbling enthusiasts. Featuring a durable, leak-proof barrel with 75% noise reduction, an automatic shutoff timer for precise control, and a unique GemFoam polishing system, this kit includes 453g of diverse gemstones and all necessary grits. Perfect for creating stunning polished stones and custom jewelry, it combines educational value with professional-grade performance.

## Description

Take your rock tumbling seriously with this top-of-the-line professional rock tumbler from National Geographic! This kit has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewellery. Contents and Features: Power-saving automatic shutoff timer; reliable, long-lasting motor; leak-proof tumbler barrel; noise-reduced operation (75% quieter than plastic barrels); plenty of stones (453g) and four levels of grit; jewellery fastenings so you can create your own unique jewellery; GemFoam, the most innovative way to add dazzling shine to your polished stones! This high-quality tumbler allows you to set your speed and tumbling time. When the time expires, your tumbler will automatically shut-off, allowing you to choose the perfect amount of tumble time for each grit stage. Plus, our redesigned tumbling barrel dampens sound better than most tumblers out there. The rough rocks provided (453g) contain nine different gemstones from around the world, and our tumbling grit is labeled by tumbling stage to make the process even easier! Choose your favorite gems and turn them into jewellery with the included necklace, key chain, ring, and two clip-on earring fastenings inside. And don't forget about GemFoam, our exclusive new way to add dazzling shine to your polished rocks! Use GemFoam just like tumbling grit, simply add it to the barrel with your stones and water, then three days later marvel at the shine! GemFoam is reusable too, allowing you to create a truly impressive gemstone collection! National Geographic Toys makes the highest quality hands-on science toys, and all products are backed by exceptional service. The National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.

Review: جهاز احترافي
Review: مكتوب تم التسليم ولم استلم المنتج حتى الآن

## Features

- manufacturer: NATIONAL GEOGRAPHIC
- Item Trademark: NATIONAL GEOGRAPHIC
- Item Category: Toys And Games

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086Z83SV5 |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #85,668 in Kitchen ( See Top 100 in Kitchen ) #1,205 in Tumblers & Water Glasses |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,127) |
| Date First Available | 15 August 2020 |
| Educational Objective(s) | Geological exploration, observation skills, logical thinking |
| Item model number | NGPROTUMBLER3 |
| Language | English |
| Manufacturer recommended age | 0 - 10 years |
| Material Type(s) | Multiple |
| Number of Game Players | 1 |
| Product Dimensions | 32 x 17 x 26 cm; 3.04 kg |
| Remote Control Included? | No |
| tech_spec_battery_description_toys | No batteries required |

## Product Details

- **Age range (description):** Kid
- **Brand:** Blue Marble
- **Item dimensions L x W x H:** 32 x 17 x 26 centimeters
- **Size:** M, S
- **Theme:** Science

## Images

![Blue Marble NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit - Image 1](https://m.media-amazon.com/images/I/91NIcMq15dL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***I on 4 November 2024*

جهاز احترافي

### ⭐ Review
*by ا***ن on 8 January 2025*

مكتوب تم التسليم ولم استلم المنتج حتى الآن

### ⭐⭐⭐⭐⭐ My 7-year old son had it running step 1 within 10 minutes.
*by I***N on 16 March 2024*

Easy to get started and looking forward to the results after 30 days following the 4-step process. Came with a non-UK plug which was a surprise after reading it came with a 3-pin plug. No instructions provided on what speed to run.

## Frequently Bought Together

- NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler for Adults & Kids with Durable 2 Lb. Barrel, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Rock Polisher
- Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies
- NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-26*