---
product_id: 454336197
title: "Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series - 2Lb"
brand: "discover with dr. cool"
price: "€ 138.54"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/454336197-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national
store_origin: CY
region: Cyprus
---

# Compatible with National Geographic 2Lb capacity Precision polishing Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series - 2Lb

**Brand:** discover with dr. cool
**Price:** € 138.54
**Availability:** ✅ In Stock

## Summary

> ✨ Unleash Your Inner Gemologist! ✨

## Quick Answers

- **What is this?** Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series - 2Lb by discover with dr. cool
- **How much does it cost?** € 138.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/454336197-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national)

## Best For

- discover with dr. cool enthusiasts

## Why This Product

- Trusted discover with dr. cool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Polish Like a Pro:** Elevate your gemstone game with a dedicated polishing barrel.
- • **Quality Assurance:** Crafted by Discover with Dr. Cool for reliable results every time.
- • **Lightweight Design:** Weighing in at just 608g, it's easy to handle and store.
- • **Optimal Performance:** Designed for the final polishing step to ensure a flawless finish.
- • **Perfect Compatibility:** Seamlessly fits National Geographic Professional Rock Tumblers.

## Overview

The Discover with Dr. Cool Replacement Rock Tumbler Barrel is a specialized 2Lb polishing barrel designed for use with National Geographic Professional Series rock tumblers. It ensures a pristine finish by preventing cross-contamination with rougher grits, making it an essential tool for gemstone enthusiasts and professionals alike.

## Description

Replacement Rock Tumbler Barrel for National Geographic Professional Series - 2Lb

## Features

- Polishing barrel allows you to polish like a pro. We recommend having a dedicated barrel that is only used for the final step in the polishing process to avoid leaving any remnants of rougher grits that might scratch your gemstones and diminish the final polish.
- Compatible with national geographic professional rock tumbler and discover with dr. Cool professional rock tumbler
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Discover with Dr. Cool |
| Model Number | PROBARREL |
| Product Dimensions | 13.97 x 13.97 x 13.97 cm; 607.81 g |
| Item Weight | 608 g |

## Product Details

- **Brand:** Discover with Dr. Cool
- **Theme:** Christmas, Birthday
- **Recommended uses for product:** Home
- **Shape:** Round
- **Pattern:** Geometric

## Images

![Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series - 2Lb - Image 1](https://m.media-amazon.com/images/I/51Uj4itNpGL.jpg)

## Questions & Answers

**Q: Is the metal on this barrel stainless steel?**
A: I've been running this barrel for 5 weeks now and seems to be running good. Metal appears to be stainless steel to me since it seems to be heavier than what aluminum would be.

**Q: How to assemble Barrel**
A: It is assembled. Tub and lid. May have to screw on knob to lid.

**Q: where is this made?**
A: Our tumbler barrels are manufactured in China.

**Q: I am looking for a 3 lb barrel for a national geographic rock tumbler.  Fo you have any idea where to find one.**
A: Please contact help@thinkbluemarble.com for parts under warranty.

## Frequently Bought Together

- Discover with Dr. Cool Replacement Rock Tumbler Barrel for National Geographic Professional Series Tumbler and Hobby Series Tumblers, 2 Pound Rock Polisher Barrel with Leak-Proof Lid
- 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 Kit - 3 Lb. Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Kit Includes Rocks for Tumbling and Rock Polisher Grit, Rock Tumbler for Adults and Kids

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**Shop now:** [https://www.desertcart.com.cy/products/454336197-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national](https://www.desertcart.com.cy/products/454336197-discover-with-dr-cool-replacement-rock-tumbler-barrel-for-national)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-04-24*