---
product_id: 109104746
title: "Rock Tumbler Media Grit Refill, Pre-Polish 500 Silicon Carbide Grit, Stage 3 for Tumbling Stones (2 Pack) (1 lb.)"
brand: "polly plastics"
price: "7317 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Polly Plastics"
url: https://www.desertcart.is/products/109104746-rock-tumbler-media-grit-refill-pre-polish-500-silicon-carbide
store_origin: IS
region: Iceland
---

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

**Brand:** polly plastics
**Price:** 7317 kr
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your rock game—because your stones deserve the spotlight!

## Quick Answers

- **What is this?** 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?** 7317 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/109104746-rock-tumbler-media-grit-refill-pre-polish-500-silicon-carbide)

## 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

- • **Proudly American:** Crafted in the USA with premium sourced materials, ensuring top-tier quality and contaminant-free grit every time.
- • **Beginner-Approved:** Backed by a 100% satisfaction guarantee, perfect for hobbyists stepping up their tumbling game with confidence.
- • **Mess-Free Storage:** Durable, reusable jars keep your grit fresh and spills at bay, so your workspace stays as polished as your stones.
- • **Fits Every Tumbler:** Compatible with all major rock tumblers—Elenco, Lortone, National Geographic, Smithsonian, Thumler—no gear left behind.
- • **Stage 3 Perfection:** Achieve flawless pre-polish results with 500 silicon carbide grit, the essential step before the final shine.

## Overview

Polly Plastics Rock Tumbler Media Grit Refill offers 1 lb. of 500 grit silicon carbide pre-polish media, designed as Stage 3 in the 4-step tumbling process. Compatible with all major rock tumblers, it comes in durable, reusable jars to prevent spills and maintain quality. Made in the USA with premium materials, this grit ensures 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: 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 1/2 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 | #10,530 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Tumbling Media |
| Brand | Polly Plastics |
| Brand Name | Polly Plastics |
| Customer Reviews | 4.7 out of 5 stars 2,472 Reviews |
| Grit Number | 500 |
| Item Dimensions | 6 x 6 x 1.5 inches |
| Item Height | 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

![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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Best stage 4 grit for the $ on Amazon.
*by B***2 on July 14, 2025*

Shines up rocks with ease. If your a rock collecting nut that loves to polish rocks like me, this is some of the best prices and available stage 4 polishing compound on Amazon. Batch after batch, I’ve gotten consistent results from Poly Plastics grits.

## 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 Iceland*
*Store origin: IS*
*Last updated: 2026-01-28*