---
product_id: 434907584
title: "Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.)"
brand: "polly plastics"
price: "22354 som"
currency: KGS
in_stock: true
reviews_count: 13
category: "Polly Plastics"
url: https://www.desertcart.kg/products/434907584-polly-plastics-rock-tumbler-media-grit-refill-pre-polish-500
store_origin: KG
region: Kyrgyzstan
---

# 500 grit silicon carbide pre-polish compatible with all major rock tumblers made in USA with premium materials Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.)

**Brand:** polly plastics
**Price:** 22354 som
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your rock tumbling game with pro-grade polish perfection!

## 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) (3 lb.) by polly plastics
- **How much does it cost?** 22354 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/434907584-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

- • **Mess-Free Reusable Jars:** Durable packaging keeps your workspace clean and grit fresh
- • **Trusted American Quality:** Crafted in the USA for superior purity and performance
- • **Precision Pre-Polish Power:** Stage 3 grit ensures flawless stone refinement
- • **Beginner-Approved & Guaranteed:** Perfect for newcomers with a 100% satisfaction promise
- • **Universal Tumbler Compatibility:** Works seamlessly with Elenco, Lortone, Smithsonian & more

## Overview

Polly Plastics Rock Tumbler Media Grit Refill offers 3 lbs of premium 500 silicon carbide grit designed for Stage 3 pre-polishing in the 4-step rock tumbling process. Compatible with all major tumblers, it comes in reusable jars to prevent spills and is proudly made in the USA, ensuring top quality and beginner-friendly use backed by a satisfaction guarantee.

## Description

Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.): desertcart.com: Industrial & Scientific

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: Best rock tumbling grits on desertcart - 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.

## Features

- STAGE 3 OF 4 STEP ROCK TUMBLING MEDIA GRIT – Two 1.5 lb. jars of Stage 3 media grit for transforming rocks and gemstones into beautiful treasures. Contains a total of 3 lbs. 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 | B09K6MVRQ1 |
| Best Sellers Rank | #9,542 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Tumbling Media |
| Brand | Polly Plastics |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,481) |
| Grit Material | Silicon Carbide |
| Grit Number | 500 |
| Item Weight | 3.47 pounds |
| Manufacturer | Polly Plastics |
| Manufacturer recommended age | 12 years and up |
| Material | Silicon Carbide |
| Number of Items | 2 |
| Package Dimensions | 7.24 x 5.83 x 3.9 inches |

## Product Details

- **Brand:** Polly Plastics
- **Grit Material:** Silicon Carbide
- **Grit Number:** 500
- **Material:** Silicon Carbide
- **Number of Items:** 2

## Images

![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.) - Image 1](https://m.media-amazon.com/images/I/61DL5HbYuFL.jpg)
![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.) - Image 2](https://m.media-amazon.com/images/I/71Cv87+59FL.jpg)
![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.) - Image 3](https://m.media-amazon.com/images/I/71tr2Qmq8NL.jpg)
![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.) - Image 4](https://m.media-amazon.com/images/I/81J02afB2kL.jpg)
![Polly Plastics Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (3 lb.) - Image 5](https://m.media-amazon.com/images/I/81M4JC8seSL.jpg)

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Newbie: Still learning
*by A***Y on August 10, 2020*

So I am new to rock tumbling, I just got my first hobby kit ever for my birthday in June (National Geographic Rock tumbler for those interested) the kit only came with so much grit and being as Ive collected a lot of rocks in the last however many years, I ran out fast. So I went to Polly Plastics to find some well priced and well working grit. Well it came SUPER fast. When I ordered on Friday it was estimated that I would receive my product by the following Wednesday, but I received it on Sunday. It was expertly packaged, you could tell that care went into me receiving my grit. Not only were the two one pound bags of grit in some heavy duty zipper sealed bags, but they were inside another zipper sealed bag, then wrapped in plastic. If these bags had leaked at all it wouldn’t have gone anywhere! Luckily they didn’t leak and I was able to get all my grit into the jar I use to keep it in. I’ll update in a few days to let you know the quality of the grind as my rocks are now currently in and being tumbled. Update: I took my rocks out of my tumbler today. For all those who would like to know my tumbler is a little 3 pound tumbler. Everything I have read says that you need to add two tablespoons of grit. When I pulled my rocks out today there was SO much extra grit that it had created a nearly cement layer at the bottom of my tumbler that took several washes in order to clear out the grit and get all my rocks out. Most of them were smooth enough to move on to the next phase. The grit is very shiny, almost metallic. I’ll update in a few more days, I put only one tablespoon in for this round. Update: Just pulled the batch out that had only one tablespoon of grit in it and it worked beautifully, it seems that for my 3 lb. hobby tumbler one tablespoon of this grit is plenty. I have attached a picture of my rocks that are ready to go on to phase 2.

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-19*