---
product_id: 318896371
title: "Refill Grit Kit for 50 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish"
brand: "mjr tumblers"
price: "$285.46"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/318896371-refill-grit-kit-for-50-lb-rock-tumblers-silicon-carbide
store_origin: US
region: United States of America
---

# long-lasting polishing power 150 oz total premium media 4-step precision grit system Refill Grit Kit for 50 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish

**Brand:** mjr tumblers
**Price:** $285.46
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your rock polishing game—because your collection deserves the best shine!

## Quick Answers

- **What is this?** Refill Grit Kit for 50 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish by mjr tumblers
- **How much does it cost?** $285.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/318896371-refill-grit-kit-for-50-lb-rock-tumblers-silicon-carbide)

## Best For

- mjr tumblers enthusiasts

## Why This Product

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

## Key Features

- • **No Fuss, No Batteries:** Ready to use out of the box—focus on your art, not setup or maintenance.
- • **Educational & Engaging:** Perfect for managers who value hands-on learning and stress-relief through creative hobbies.
- • **Generous 150 oz Supply:** Ample media ensures multiple tumbler cycles without frequent refills—stay ahead of your craft.
- • **Multi-Stage Grit Mastery:** Experience flawless rock transformation with 4 distinct grit grades for every polishing phase.
- • **Premium Silicon Carbide & Aluminum Oxide:** Top-tier abrasives engineered for professional-grade shine and durability.

## Overview

The MJR Tumblers Refill Grit Kit offers a comprehensive 4-step polishing system with 150 ounces of premium silicon carbide and aluminum oxide media. Designed for 50 lb rock tumblers, it delivers professional-grade results with minimal setup, making it ideal for hobbyists and educational use alike.

## Description

Full description not available

## Features

- 50 ounces of 60/90 Graded Silicon Carbide Grit (Step 1)
- 50 ounces of 120/220 Graded Silicon Carbide Grit (Step 2)
- 25 ounces of 500/600 Graded Silicon Carbide Grit (Step 3)
- 25 ounces of 1200 Aluminum Oxide Polish (Step 4)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 33.02 x 25.4 x 6.35 cm; 4.25 kg |
| Manufacturer recommended age | 8 months and up |
| Manufacturer reference | MJR50pgk |
| Educational Objective(s) | Teach basic principles of geology and mineralogy through hands-on rock polishing |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| Material Type(s) | Aluminum, carbide |
| ASIN | B07F6TM5YP |

## Images

![Refill Grit Kit for 50 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg)

## Frequently Bought Together

- MJR Tumblers Refill Grit Kit for 50 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish
- 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.us/products/318896371-refill-grit-kit-for-50-lb-rock-tumblers-silicon-carbide](https://www.desertcart.us/products/318896371-refill-grit-kit-for-50-lb-rock-tumblers-silicon-carbide)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-21*