---
product_id: 542218732
title: "NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2 lb. Barrel, Rocks, Grit, GemFoam Polisher, Rock Tumblers for Adults"
brand: "blue marble"
price: "2167 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Blue Marble"
url: https://www.desertcart.ro/products/542218732-national-geographic-professional-rock-tumbling-kit-patent-pending-rock-polisher
store_origin: RO
region: Romania
---

# ultra-quiet sound-dampening cover 2 lb. large water-tight barrel 3 selectable speeds NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2 lb. Barrel, Rocks, Grit, GemFoam Polisher, Rock Tumblers for Adults

**Brand:** blue marble
**Price:** 2167 Lei
**Availability:** ✅ In Stock

## Summary

> 🪨 Transform Rough Rocks into Dazzling Gems—Quietly, Professionally, Effortlessly!

## Quick Answers

- **What is this?** NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2 lb. Barrel, Rocks, Grit, GemFoam Polisher, Rock Tumblers for Adults by blue marble
- **How much does it cost?** 2167 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/542218732-national-geographic-professional-rock-tumbling-kit-patent-pending-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

- • **Complete Starter Kit:** Includes 1 lb. rough rocks, 4 grit bags, patented GemFoam polisher, strainer, and 5 jewelry fastenings—everything to start creating immediately.
- • **Award-Winning STEM Fun:** Backed by the Toy Association’s Toy of the Year winner, inspiring creativity and geology passion for all ages 8+.
- • **GemFoam Polisher Magic:** Reusable GemFoam adds a brilliant, museum-quality shine to your polished stones.
- • **Whisper-Quiet Operation:** Sound-dampening cover ensures peaceful indoor use—perfect for shared or small spaces.
- • **Precision Tumbling Control:** Choose from 3 speeds and a timer with day/hour settings for flawless results every time.

## Overview

The National Geographic Platinum Series Ultimate Rock Tumbler Kit is a professional-grade, ultra-quiet rock polisher featuring a large 2 lb. barrel, 3-speed settings, and a versatile timer. This all-in-one STEM kit includes rough rocks, multiple polishing grits, a patented GemFoam polisher for a brilliant finish, and jewelry fastenings to create wearable treasures. Designed for ages 8 and up, it combines educational value with award-winning quality, perfect for indoor use in any space.

## Description

National Geographic, the leader in professional rock tumblers, is proud to introduce the Platinum Series Ultimate Rock Tumbler Kit, our quietest, most robust, and feature-filled tumbler yet! The Ultimate Rock Tumbler set is a revolution in rock tumbling, with a host of professional rock tumbler features designed to make tumbling fun, easy, and much quieter than before: all-new, ultra-quiet design; sleek, professional exterior styling; large, water-tight, 2-lb. barrel assembly; easy-set timer with day/hour settings; variable tumbling speeds. Includes 1 lb. rough rocks, grit, strainer, patented GemFoam polisher & 5 jewelry settings. The Ultimate Rock Tumbler is our quietest model yet, and along with an all-new, sleek exterior, it's perfect for indoor tumbling, especially in smaller and shared spaces. The redesigned easy-set timer has settings for hours and days, and with three tumbling speeds and a patented agitate mode for softer rocks, precise tumbling couldn't be easier. The Ultimate Tumbler includes everything you need to start creating your own gorgeous gemstones right away. Along with 1 lb. of rough rocks, you get 4 bags of polishing grit, a newly-designed strainer and our patented GemFoam polisher that adds a stunning sheen to your finished gems. Also included are 5 jewelry settings to turn your gems into wearable treasures. The Ultimate Tumbler STEM science kit from National Geographic is the perfect way to encourage a love of geology and inspire kids and adults alike with the Earth's natural beauty! We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world's largest nonprofit scientific and educational organizations.

Review: Present for partner
Review: Works great but noisy?

## Features

- PROFESSIONAL TUMBLING - The Ultimate Tumbler delivers spectacular results with unparalleled ease of use! With its large 2-pound barrel, 3 selectable speeds; and timer with settings for days and hours.
- QUIETEST TUMBLER - The Ultimate Rock Tumbler's all-new design includes a sound-dampening cover that makes tumbling quieter than ever, perfect for enthusiasts who tumble indoors, or in smaller or shared spaces.
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need to get started, including 1 pound of rough rocks, 4 bags of grit, 5 jewelry fastenings, a newly designed strainer, and our exclusive GemFoam rock polisher for a brilliant finish!
- USE GEMFOAM FOR DAZZLING RESULTS - Your tumbled rocks will have an incredible shine thanks to our reusable GemFoam rock polisher. Just add GemFoam and water to the barrel after your final tumbling stage for a brilliant finish!
- 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 | B0C2JN3S9M |
| Age Range Description | 8 years and up |
| Age range (description) | 8 years and up |
| Brand | Blue Marble |
| Brand Name | Blue Marble |
| Customer Reviews | 4.3 out of 5 stars 552 Reviews |
| Educational Objective | Development of exploratory skills and manual dexterity |
| Included Components | 1 lb of Rough Gemstones, 2 lb Barrel, 3 Speeds, Timer Settings, 4 Stage Polishing Grits, 5 Jewelry Fastenings, Exclusive GemFoam Polishing Foam, Newly Designed Strainer, Ultra-Quiet Tumbler w/ Sound-Dampening Cover |
| Item Dimensions | 40.9 x 19.4 x 34.7 centimeters |
| Item Type Name | Ultra Quiet Rock Tumbling Kit |
| Item Weight | 907 g |
| Item dimensions L x W x H | 40.9 x 19.4 x 34.7 centimeters |
| Item weight | 907 g |
| Manufacturer | Blue Marble |
| Manufacturer Maximum Age (MONTHS) | 1188.0 |
| Manufacturer Minimum Age (MONTHS) | 96.0 |
| Material Type | Multiple |
| Size | L |
| Sub Brand | National Geographic |
| Theme | Geology |
| UPC | 810070622329 |
| Unit Count | 1.0 Count |

## Product Details

- **Age range (description):** 8 years and up
- **Brand:** Blue Marble
- **Item dimensions L x W x H:** 40.9 x 19.4 x 34.7 centimeters
- **Size:** L
- **Theme:** Geology

## Images

![NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2 lb. Barrel, Rocks, Grit, GemFoam Polisher, Rock Tumblers for Adults - Image 1](https://m.media-amazon.com/images/I/81EF9KBITbL.jpg)

## Questions & Answers

**Q: I need a replacement barrel, i have searched without finding one. where do get one?**
A: For parts under warranty, please contact us directly using the customer service contact information locate on the box and/or the instruction manual.

**Q: Is this dual voltage?**
A: The unit has a solar panel plus batteries 
Just started to use the device about a month ago

**Q: Can you make Seaglass in this Tumblr?**
A: I put thicker glass pieces in the tumbler 
The glass came out with rounded corners 
Very happy with it

**Q: The tumbler was so quiet for the first 5 days, then the knocking sound began.  I’ve double checked the lid, etc. and it’s still happening.  Why?**
A: I’m guessing that it’s either the rocks or stones inside the tumbler, could be there is a small leak and there isn’t as much water inside. That was what happened to me. It could be the rollers need oiling also. The whole process is pretty simple, there aren’t a lot of things to check. Good luck!  It’s a great hobby

## Customer Reviews

### ⭐⭐⭐⭐⭐ Present for partner
*by A***I on 28 December 2024*



### ⭐⭐⭐⭐⭐ Works great but noisy?
*by R***N on 12 July 2024*



### ⭐⭐⭐⭐⭐ Pretty great so far - Better quality machine than the cheap department stores' brands
*by A***. on 15 March 2025*



## Frequently Bought Together

- NATIONAL GEOGRAPHIC Platinum Series Ultra Quiet Gem Polisher Kit - Patent-Pending for Kids & Adults, 2 lb. Barrel, Grit, GemFoam, Rock Tumblers
- 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 - 5 lb. Mix of Rocks for Tumbling and Rough Gemstones - Rock Tumbler Supplies Include Rock Tumbler Grit and Polish Refill, and Unpolished Rocks

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-11*