---
product_id: 109104746
title: "Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.)"
brand: "polly plastics"
price: "R816"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Polly Plastics"
url: https://www.desertcart.co.za/products/109104746-polly-plastics-rock-tumbler-media-grit-refill-pre-polish-500
store_origin: ZA
region: South Africa
---

# 500 grit pre-polish precision Universal tumbler compatibility Made in USA quality assurance Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.)

**Brand:** polly plastics
**Price:** R816
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your rock tumbling game—because your stones deserve the best polish!

## Quick Answers

- **What is this?** Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.) by polly plastics
- **How much does it cost?** R816 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/109104746-polly-plastics-rock-tumbler-media-grit-refill-pre-polish-500)

## Best For

- polly plastics enthusiasts

## Why This Product

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

## Key Features

- • **Beginner-Approved:** Backed by a 100% satisfaction guarantee—perfect for pros and hobbyists alike.
- • **Mess-Free Storage:** Durable, reusable jars keep your grit fresh and spills at bay.
- • **Fits Every Tumbler:** Seamlessly compatible with all major rock tumblers—no guesswork needed.
- • **Stage 3 Perfection:** Achieve flawless pre-polish results with 500 grit silicon carbide media.
- • **American-Made Excellence:** Crafted in the USA with premium materials for unmatched purity and performance.

## Overview

Polly Plastics Rock Tumbler Media Grit Refill offers 1 lb. of premium 500 grit silicon carbide pre-polish media, designed as Stage 3 in a 4-step tumbling process. Compatible with all major rock tumblers, it comes in durable, reusable jars to prevent spills and ensure easy storage. Made in the USA with high-quality materials, this grit guarantees superior polishing results and is beginner-friendly with a satisfaction guarantee.

## Description

Buy Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.): Tumbling Media - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good grit - This grit worked great for my first ever Columbia river rock polishing experiment. I didn't have enough stage 1 grit from the "starter" pack I originally purchased. I added another 3 TBSP to my tumbler and the rocks look great at stage 1
Review: Pure Aluminum Oxide - Better than other brands - I get an excellent polish with this 1200 grit. Rocks come out way shinier than when using other polish brands. For instance the Rockshed 1000 grit results in dull rocks in comparison. The Rockshed grit color is gray and under a high powered microscope you can see contamination, black particles, which make the overall color of the grit gray. Aluminum oxide, with high purity, should be white.

## Features

- STAGE 3 OF 4 STEP ROCK TUMBLING MEDIA GRIT – Two 1/2 lb. jars of Stage 3 media grit for transforming rocks and gemstones into beautiful treasures. Contains a total of 1 lb. Pre-polish 500 Grit.
- COMPATIBLE WITH ALL TUMBLERS - Our universal grit is designed for any rock tumbler. Elenco, Lortone, National Geographic, Smithsonian, Thumler and more!
- SUPERIOR PACKAGING - Packaged in durable, re-usable jars to prevent messy spills and to safely store unused product for later.
- MADE IN THE USA – Polly Plastics is an American company with American sourced materials for superior quality control and reduced risk of contaminants.
- BEGINNER FRIENDLY - 100% satisfaction guarantee on all our products.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P4XBFLF |
| Best Sellers Rank | #11,166 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Tumbling Media |
| Brand | Polly Plastics |
| Brand Name | Polly Plastics |
| Customer Reviews | 4.7 out of 5 stars 2,481 Reviews |
| Grit Number | 500 |
| Item Dimensions | 6 x 6 x 1.5 inches |
| Item Weight | 226.8 Grams |
| Item dimensions L x W x H | 6 x 6 x 1.5 inches |
| Manufacturer | Polly Plastics |
| Material | silicone carbide |
| Material Type | silicone carbide |

## Images

![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.) - Image 1](https://m.media-amazon.com/images/I/71Walz6JPXL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good grit
*by T***B on August 22, 2025*

This grit worked great for my first ever Columbia river rock polishing experiment. I didn't have enough stage 1 grit from the "starter" pack I originally purchased. I added another 3 TBSP to my tumbler and the rocks look great at stage 1

### ⭐⭐⭐⭐⭐ Pure Aluminum Oxide - Better than other brands
*by B***5 on January 24, 2026*

I get an excellent polish with this 1200 grit. Rocks come out way shinier than when using other polish brands. For instance the Rockshed 1000 grit results in dull rocks in comparison. The Rockshed grit color is gray and under a high powered microscope you can see contamination, black particles, which make the overall color of the grit gray. Aluminum oxide, with high purity, should be white.

### ⭐⭐⭐⭐⭐ Best rock tumbling grits on Amazon
*by M***E on May 19, 2025*

I have been rock tumbling for over two years now and I have purchased this brand multiple times and will continue to be a return customer. The grits work exactly as expected for each stage of tumbling. Important notes: - Get the one that has the ceramic filler - not the plastics. The ceramic will last way longer and be better on your rocks. - Also - watch some YouTube videos on how to tumble rocks and switch between stages. There's some important tips to make sure you get the best results. Michigan Rocks YouTube channel has some great instructions on it. For the price and quality, couldn't be happier.

## Frequently Bought Together

- Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.)
- 10 lbs Rock Tumbler Grit - Tumbler Media Grit,Rock Polishing Grit Media, Works with Any Rock Tumbler, Rock Polisher, Stone Polisher,COARSE 60/90 Silicon Carbide Grit, Step 1 for Tumbling Stones
- 5 lbs Rock Tumbler Grit Step 1 Tumbler Media Grit,Rock Polishing Grit Media, Works with Any Rock Tumbler, Rock Polisher, Stone Polisher,COARSE 60/90 Silicon Carbide Grit, Step 1 for Tumbling Stones

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-05*