---
product_id: 744071285
title: "ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys"
brand: "dan&darci"
price: "$412.96"
currency: USD
in_stock: true
category: "Dan&Darci"
url: https://www.desertcart.us/products/744071285-advanced-professional-rock-tumbler-kit-9-day-digital-timer-polishing
store_origin: US
region: United States of America
---

# 9-day digital timer low noise, leak-proof barrel 3-speed polishing control ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys

**Brand:** dan&darci
**Price:** $412.96
**Availability:** ✅ In Stock

## Summary

> 💎 Turn rough rocks into dazzling gems — polish your passion for science!

## Quick Answers

- **What is this?** ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys by dan&darci
- **How much does it cost?** $412.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/744071285-advanced-professional-rock-tumbler-kit-9-day-digital-timer-polishing)

## Best For

- dan&darci enthusiasts

## Why This Product

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

## Key Features

- • **Gift That Inspires:** Ideal for kids and adults, turning science into a captivating hands-on adventure
- • **Set & Forget Timer:** 9-day digital timer with auto shut-off for hassle-free tumbling
- • **Whisper-Quiet Operation:** Leak-proof, low noise barrel keeps your space peaceful
- • **Complete STEM Experience:** All-in-one kit with stones, sand, and educational guide to spark curiosity
- • **Precision Polishing Control:** 3 adjustable speeds for the perfect gem finish every time

## Overview

The Advanced Professional Rock Tumbler Kit features a durable motor with 3-speed settings and a 9-day digital timer displayed on an LCD screen. Its leak-proof, low noise barrel holds up to 1 lb of stones, making it perfect for STEM education and hobbyists aged 8 and up. The complete kit includes coarse stones, sandstone packets, a mesh strainer, jewelry storage, and an illustrated guide to transform rough rocks into polished gemstones effortlessly.

## Description

Product description Professional Kids Rock Tumbler - Jewelry Polishing Machine - STEM Toys - Science Kit - Educational Gift for Boys and Girls Safety Warning Choking Hazard

## Features

- Transforms coarse rocks into polished gems. Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Place coarse stones and sandstone inside, and the machine will do the rest
- COMPLETE KIT: Includes: Locking Tumbler Machine, Low Noise Barrel (1 pound capacity), 4 Sandstone Packets and a variety of 1/2 lb coarse stones. Mesh Strainer, Jewelry Fasteners, Jewelry Storage Bag, Illustrated Easy to Follow Instructions and Learning Guide
- SUPERIOR QUALITY: Powered by a strong and durable motor for long term use. Includes a leak-proof quiet barrel
- ADVANCED FUNCTIONS: Speed control (provides a finer finish), 9 days timer (turns off automatically at your preferred time) will be displayed on the LCD screen
- FUN AND EDUCATIONAL GIFT FOR ALL AGES: Science projects are rarely fun and attractive, but this kit does both. Immediately attracts children and adults when out of the box. Perfect for STEM educational projects for all ages. Encourages science, geology, and mineralism while fun and exciting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q32W334 |
| Age Range Description | Adult |
| Amazon Bestseller | #412,860 in Toys & Games ( See Top 100 in Toys & Games ) #443 in Earth Sciences & Geology Science Kits |
| Brand Name | Dan&Darci |
| Customer Reviews | 4.5 4.5 out of 5 stars (9,062) |
| Educational Objective | STEM |
| Included Components | Instruction Manual + Learning Guide, Jewelry Fastener, Mesh Strainer, Power Cord, Spare Motor Belt, Rock Tumbler, 0.55lb Assorted Coarse Stones, 4 Grit Packets |
| Is Assembly Required | No |
| Item Dimensions | 32.3 x 25.4 x 14.5 cm |
| Manufacturer | Dan&Darci |
| Manufacturer Maximum Age (MONTHS) | 1296.0 |
| Manufacturer Minimum Age (MONTHS) | 96.00 |
| Manufacturer Part Number | DD-007 |
| Material Type | Metal |
| Model Number | Rock Tumbler |
| Size | 33 x 23 x 14 cm |
| Theme | Geology |
| UPC | 855831008158 |
| Unit Count | 1 Count |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Dan&Darci
- **Item dimensions L x W x H:** 32.3 x 25.4 x 14.5 cm
- **Size:** 33 x 23 x 14 cm
- **Theme:** Geology

## Images

![ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys - Image 1](https://m.media-amazon.com/images/I/81C6ibFx1QL.jpg)
![ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys - Image 2](https://m.media-amazon.com/images/I/71hYGgmNIdL.jpg)
![ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys - Image 3](https://m.media-amazon.com/images/I/61f+P05k5fL.jpg)
![ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys - Image 4](https://m.media-amazon.com/images/I/71rq1RiS1CL.jpg)
![ADVANCED PROFESSIONAL ROCK TUMBLER KIT - 9 Day Digital Timer for Polishing & 3 Speed Settings - Transform Coarse Rocks into Beautiful Gemstones Perfect Science & STEM Gifts for Kids of All Ages: Geology Toys - Image 5](https://m.media-amazon.com/images/I/71VwOrYVPfL.jpg)

## Questions & Answers

**Q: what is the warranty for and how long is it?**
A: I don’t think there is a warranty for it. However, if it’s defective call the company. They seem to be really good at doing the right thing

**Q: Can you confirm the voltage rating of the power cord? only 110v or up to 240v? thank you.**
A: The power supply will work with 100-240v. It has a US plug.

**Q: I get an error code everytime I try and run it doesn't anyone know why? I hardly have anything in it.**
A: Check the owners manual

**Q: Mine didn't come with an instruction booklet. Where can i find one online or request one?**
A: Contact Amazon or the Seller about getting a booklet. As for online guidance, doing a quick google search on how to use a rock tumbler will help.
You can also put your tumbler info into youtube and see someone setting it up and using it. A quick search of Amazon shows several books on rock tumbling as well as gemstone/rock identification.

## Frequently Bought Together

- Dan&Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Geology Toy for Kids All Ages
- Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies
- NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-07*