---
product_id: 318896364
title: "MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish"
brand: "mjr tumblers"
price: "44099CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Mjr Tumblers"
url: https://www.desertcart.sn/products/318896364-mjr-tumblers-refill-grit-kit-for-3-lb-rock-tumblers
store_origin: SN
region: Senegal
---

# Aluminum Oxide polish for mirror finish Silicon Carbide for superior abrasion 4-step precision grit system MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish

**Brand:** mjr tumblers
**Price:** 44099CFA
**Availability:** ✅ In Stock

## Summary

> 🪨 Polish Like a Pro — Because Your Rocks Deserve the Spotlight

## Quick Answers

- **What is this?** MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish by mjr tumblers
- **How much does it cost?** 44099CFA 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/318896364-mjr-tumblers-refill-grit-kit-for-3-lb-rock-tumblers)

## 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

- • **Craft Your Masterpiece:** Transform raw stones into gallery-worthy gems with professional-grade media
- • **4-Stage Grit Refinement:** Stepwise silicon carbide grades ensure flawless rock tumbling
- • **Premium Polishing Power:** 1200-grade aluminum oxide delivers a brilliant shine
- • **Compact & Convenient Kit:** All essential grits and polish in one sleek, easy-to-store package
- • **Optimized for 3 LB Tumblers:** Perfectly portioned for your 3-pound rock tumbler workload

## Overview

The MJR Tumblers Refill Grit Kit is a specialized 4-step media set designed for 3-pound rock tumblers, featuring graded silicon carbide grits (60/90, 120/220, 500/600) and a 1200 aluminum oxide polish. This kit enables precise abrasion and polishing stages to transform rough stones into smooth, lustrous gems, ideal for hobbyists and professionals seeking consistent, high-quality results.

## Description

MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish : desertcart.ae: Arts & Crafts

Review: Buyer Beware! Read the small print on the size. This is a shockingly small amount of grit for the price. You might get 2 tumbles......maybe. I've paid less than this for 4 times the amount and just as good. Very misleading and sneaky.
Review: what a rip. the other reviews don't lie, this is an even smaller amount of grit than you're imagining. it's like a sample kit. photos of my scale are attached (and measurements include the plastic bag.) i've only used level 1 but it was less than 3 tablespoons. for a 3-lb tumbler it's half of what i needed for a single batch. there's a reason a lot of sellers don't put the weights on the packaging.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DZ54NQN |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Green |
| Customer Reviews | 4.3 4.3 out of 5 stars (496) |
| Date First Available | 6 August 2018 |
| Item model number | MJR3pgk |
| Manufacturer recommended age | 8 months and up |
| Material Type(s) | Aluminum Oxide Silicon Carbide Plastic Pellets |
| Product Dimensions | 20.32 x 15.24 x 1.02 cm; 254.01 g |

## Product Details

- **Brand:** MJR Tumblers
- **Grit material:** Aluminum Oxide
- **Grit type:** Coarse
- **Item dimensions L x W x H:** 20.3 x 15.2 x 1 centimeters
- **Material:** Aluminum Oxide Silicon Carbide Plastic Pellets

## Images

![MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 1](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg)
![MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 2](https://m.media-amazon.com/images/I/71SVNiXuCwL.jpg)
![MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 3](https://m.media-amazon.com/images/I/71ENSH8w-mL.jpg)
![MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 4](https://m.media-amazon.com/images/I/61mhoieNFpL.jpg)
![MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish - Image 5](https://m.media-amazon.com/images/I/71u-VNXNY6L.jpg)

## Questions & Answers

**Q: Can you use this for a 1 lb National Geographic tumbler**
A: It should work just fine. This is just the grit and the grit is usable in any tumbler.

**Q: Can this grit be used for grinding and polishing rock thin sections?**
A: i would think so

**Q: After the polish, are the rocks glossy and shiny?**
A: They won't be as shiny as you think.  The grit polish the rocks so try are smooth but there is a fifth stage in rock polishing called burnishing that you have to do at the end.  Search the internet on directions but it involves tumbling them in soap like borax. Also, if you want your rocks to look good you have to get the ceramic filler pellets to even out the tumbles.  Plastic doesn't do the trick like ceramic.  Filler pellets vs no filler pellets is a big difference on helping the rocks get shiny.

## Customer Reviews

### ⭐ Review
*by S***D on 3 January 2026*

Buyer Beware! Read the small print on the size. This is a shockingly small amount of grit for the price. You might get 2 tumbles......maybe. I've paid less than this for 4 times the amount and just as good. Very misleading and sneaky.

### ⭐ Review
*by J***F on 16 February 2026*

what a rip. the other reviews don't lie, this is an even smaller amount of grit than you're imagining. it's like a sample kit. photos of my scale are attached (and measurements include the plastic bag.) i've only used level 1 but it was less than 3 tablespoons. for a 3-lb tumbler it's half of what i needed for a single batch. there's a reason a lot of sellers don't put the weights on the packaging.

### ⭐⭐⭐⭐⭐ Review
*by K***A on 11 July 2025*

This grit and polish set is exceptional. You can tell it was crafted by people who genuinely care — not just about rocks, but about the process and purpose. This company emanates expertise and enthusiasm, and that shows in the results. My rocks came out more beautiful than ever and I would prefer to buy only from these rock guys. The picture is of some rocks from my apartment landscaping after the process . The instructions are detailed but easy to follow. It’s not your typical instruction manual, rather a sincere document created by the seller from the heart (their tips and tricks included!). It’s really unique and special. I’ve been using a “gimmicky” tumbler set for my HS STEM program and at home with my kids. As a teacher, is a great tool for many lessons and even many subjects.

## Frequently Bought Together

- Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Results. For 3lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned
- UU UNIHOM 3 lbs Bulk Rough Madagascar Stones Mix Large 1" Natural Raw Stones Crystal for Tumbling, Cabbing, Fountain Rocks, Decoration,Polishing, Wire Wrapping, Wicca Reiki Crystal Healing
- FORBY 3 lbs Bulk Rough Madagascar Stones Mix - Large 1" Natural Raw Stones Crystal for Tumbling, Cabbing, Fountain Rocks, Decoration,Polishing, Wire Wrapping, Wicca & Reiki Crystal Healing

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-20*