---
product_id: 587816824
title: "VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit"
brand: "viyuki"
price: "€ 78.12"
currency: EUR
in_stock: true
reviews_count: 9
category: "Viyuki"
url: https://www.desertcart.it/products/587816824-viyuki-rock-tumblers-kit-includes-rough-gemstones-4-polishing-grits
store_origin: IT
region: Italy
---

# ultra-quiet rubber barrel one-touch timer & auto shutoff 1-lb durable motor VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit

**Brand:** viyuki
**Price:** € 78.12
**Availability:** ✅ In Stock

## Summary

> 💎 Turn your curiosity into polished brilliance — rock your STEM game!

## Quick Answers

- **What is this?** VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit by viyuki
- **How much does it cost?** € 78.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/587816824-viyuki-rock-tumblers-kit-includes-rough-gemstones-4-polishing-grits)

## Best For

- viyuki enthusiasts

## Why This Product

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

## Key Features

- • **Set It and Forget It:** One-touch timer with automatic shutoff lets you focus on life while your gems get perfected.
- • **Built to Endure & Impress:** Heavy-duty 1-lb motor and leakproof rubber barrel ensure years of quiet, reliable use.
- • **Complete All-in-One STEM Kit:** Includes 4 polishing grits, rough gemstones, jewelry fastenings, and detailed instructions.
- • **Fun, Educational, and Socially Shareable:** Perfect for curious minds 12+, blending science, creativity, and collectible bragging rights.
- • **Transform Rough Rocks into Dazzling Gems:** Effortlessly polish everyday stones into sparkling gemstones with a pro-grade tumbler.

## Overview

The VIYUKI Rock Tumblers Kit is a compact, durable hobby machine featuring a 1-lb motor and quiet, leakproof rubber barrel. It includes 0.5 lb of rough gemstones, 4 polishing grits, jewelry fastenings, and easy-to-follow instructions, making it an ideal STEM activity for ages 12 and up. With a one-touch timer and automatic shutoff, it offers a hassle-free way to transform ordinary rocks into stunning polished gems, perfect for educational fun and creative expression.

## Description

desertcart.com: VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit : Toys & Games

Review: Mine has been good so far. - I have ran rocks for about 12 days 24/7. So far it works well. I have seen reviews of them smoking, but mine is fine. Just pay attention for the first few hours I guess. Pay attention on the barrel on the power switch side, my nut came unscrewed and my barrel leaked a little. I caught it early and cleaned it up. Worth it to me if it's one of the ones that works.
Review: Incredibly quiet! - High quality, comes with everything you need including replacement belts. Very quiet compared to other rock tumblers, and its quality is amazing for the price. It can fit in a small space, and I haven't ran into any issues while I've had it. The assembly was a little confusing, but overall a great product and I would recommend purchasing if you want to get started with rock tumbling.

## Features

- CREATE YOUR GEMSTONES: Best rock tumblers make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into shiny, polished gemstones, thanks to its simple operation and durable design.
- A ROCK TUMBLER MACHINE MADE TO LAST: Our hobby tumblers are made with a 1-LBS barrel motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it quieter than other plastic models. Excellent STEM activity.
- COMPLETE HOBBY TUMBLING KIT: Tumbler kit includes low-noise barrel, polishing grits(4 bags ), rough gemstones (0.5 lb in a bag), jewelry fastenings, extra screwdriver/mesh strainer, and a detailed operating instruction. Sturdy and holds a good amount of rocks. Quiet rubber drum.
- EASY TO USE: Rock tumblers are small machines, usually small enough to rest on a tabletop. Rotary tumblers' simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, set it and forget it! Ideal gift for interested found exploring nature.
- A FUN AND EDUCATIONAL HOBBY FOR ALL AGES: No matter how old you are, rock collecting can be a fun, interesting hobby. It doesn’t require any special knowledge — all you have to do is find a few rocks that catch your eye in your yard, and you’re ready to go — but you can learn quite a bit along the way about different types of rocks and how they’re formed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C6K3DPPH |
| Best Sellers Rank | #63,801 in Toys & Games ( See Top 100 in Toys & Games ) #19 in Kids' Rock Tumblers |
| Customer Reviews | 3.9 3.9 out of 5 stars (849) |
| Item Weight | 1 pounds |
| Manufacturer | VIYUKI |
| Manufacturer recommended age | 12 years and up |
| Product Dimensions | 1 x 1 x 1 inches |
| Specific Uses For Product | Gemstone, Jewelry |

## Product Details

- **Brand:** VIYUKI
- **Color:** Orange
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Power Source:** Corded Electric

## Images

![VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit - Image 1](https://m.media-amazon.com/images/I/71Zsn7dY6ZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mine has been good so far.
*by T***. on February 10, 2024*

I have ran rocks for about 12 days 24/7. So far it works well. I have seen reviews of them smoking, but mine is fine. Just pay attention for the first few hours I guess. Pay attention on the barrel on the power switch side, my nut came unscrewed and my barrel leaked a little. I caught it early and cleaned it up. Worth it to me if it's one of the ones that works.

### ⭐⭐⭐⭐⭐ Incredibly quiet!
*by C***N on January 13, 2026*

High quality, comes with everything you need including replacement belts. Very quiet compared to other rock tumblers, and its quality is amazing for the price. It can fit in a small space, and I haven't ran into any issues while I've had it. The assembly was a little confusing, but overall a great product and I would recommend purchasing if you want to get started with rock tumbling.

### ⭐ Updated: I posted 1-star review, Seller responded quickly, offered full refund, promised to improve
*by M***Y on May 14, 2025*

This seller stands behind their product -- which was good to see after I was forced to leave a 1-star review as my only way to reach them. They responded quickly to my initial review, offered a full refund of my purchase price (which I have since received). I said that I would change my review but that they had to take the model off of the market and make my suggested improvements. The fact that this seller reads reviews of their product -- and, encountering a bad one, responds quickly says something positive about the seller. Here is what I experienced -- along with my suggestions to improve the tumbler. 1. The Seller needs to make it easier to contact them -- and can start by including, at a minimum, an email address. The email address needs to be included in the manual and on the customer service card that came with the tumbler. Contact information should also be readily available on the product page and the seller's page. When I ran into trouble with the tumbler and wanted to contact the seller, nowhere -- and I mean _nowhere_ -- on the tumbler, the manual or their seller's amazon page is a phone number, email address and/or website listed. (Their documents implore you to reach out to them if you have a problem -- but provide no means to do so.) I even called amazon customer support for assistance contacting the seller -- and they were unable to assist me! 2. When on a level surface, the tumbler needs to have more effective means of keeping the barrel on the rollers and from migrating backward and forward and thus rubbing against the tumbler. Why? Because from the beginning, when the tumbler was turned on, the barrel would migrate toward the back of the tumbler despite the tumbler being on a level surface. The barrel would scrape against the 2 metal plates that are protecting the motor and belt mechanism; this caused damage to the bottom of the barrel. Since the tumbler seemed otherwise solidly constructed, I solved this problem by elevating the back of the tumbler. This worked for about 9 months -- except that I had to keep elevating the back of the tumbler more and more. At month 10, the barrel started skipping and making a horrible sound -- and despite the incline or whether the barrel was empty or had rocks in it, the barrel kept moving backward in the tumbler. Then it started jumping (see video) -- and making more odd noises. As you can see from the photos and video, there was plenty of damage to the barrel and tumbler. 3. Make the belt easy to replace -- and include detailed printed and video instructions. (It is very rare that a tumbler comes with so many replacement belts. This one came with 5. Kudos to the seller.) Continuing my story: At this 10-month point, I thought I'd change the belt. Instructions for changing the belt, video or otherwise, were not provided. But with a full parts diagram included in the manual, I thought I would try to replace the belt. This ended in failure: after carefully and slowly taking things apart, I got to a point of realizing that there was no way I was going to get the tumbler put back together properly. I then looked for a way to contact the seller -- and found that the only way to reach out was to leave a review, one that accurately reflected my experience. Again, there are things to like about this tumbler: it is fairly quiet compared to 2 others I own; the construction is solid; the tumbling speed is really good (most tumblers are much too fast, even on their slowest speed!); the tumbler has 1 on/off rocker switch and no other controls and I like this simplicity (if the power goes out the tumbler will come back on with the power); it is a good value for the money -- even better if the seller uses my input to improve their product and service.

## Frequently Bought Together

- VIYUKI Rock Tumblers Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings,Operating Instruction, Great Stem Science Kit for Kids
- 2 LBS Rock Tumbling Ceramic Filler Medi Rock Tumbling Ceramic Filler Media Non- Abrasive Ceramic Pellets for All Type Tumblers 3/16" X 3/8"
- 3LB Rock Tumbler Grit and Polish Refill Set, 4-Step Professional Polish Rock Tumbler Grit to Unlock Stunning Polished Stones. Ideal for National Geographic, KomeStone, and Other Polishers and Tumblers

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-25*