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Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids All Ages : Geology Toy

4.5 4.5 out of 5 stars 8,796 ratings

$79.99 with 20 percent savings
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Purchase options and add-ons

Brand Dan&Darci
Theme Geology
Age Range (Description) Kid,Adult
Item dimensions L x W x H 12.99 x 9.06 x 5.51 inches
Educational Objective STEM

About this item

  • Turn rough rocks into polished gems: Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Pour in the rough stones and grit and let the machine do its job!
  • Complete kit: Includes: rock tumbler machine, low-noise barrel (1 lb. capacity), 4 grit packets, 1/2 lb. assorted rough rocks, mesh strainer, jewelry fasteners, gem storage bag, and an illustrated easy-to-follow instruction and learning guide booklet.
  • Powerful quality: Runs on a powerful heavy duty motor that will last for a very long time, and includes a leak-resistant barrel that runs quieter than the other brands.
  • Advanced features: Includes speed controls (providing more granular tumbling results), a 9-day timer (shuts off automatically when you desire), all displayed on beautiful LCD screens.
  • A fun and educational gift for all ages: It's not often that a science project can be fun and engaging, but this kit achieves both! It fascinates children and adults as soon as they pull it out of the box and is a perfect STEM project for any age. It fosters a love for science, geology and mineralogy in a fun and exciting way.

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Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids All Ages : Geology Toy

Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids All Ages : Geology Toy


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From the brand


Product Description

Welcome to the fabulous world of rock tumbling!

For thousands of years, Mother Nature has been tumbling rocks in water and sand to make them smooth and shiny. Now it's your turn!

Collect all types of rocks and turn them — yourself — into colorful gemstones. Make your own jewelry, use them in crafts or decorations, or just collect them for fun!

Get the Dan&Darci Advanced Rock Tumbler, bring your curiosity, and get your gem collection started now!

Setup

ABOUT US:

We are Dan & Darci!

As you can tell from our name, we think that two is better than one. That’s why we create quality toys and science kits that are BOTH entertaining AND educational.

Our lab of mad scientists develop the coolest products — because they know that while you love to grow your brains and be the smartest one in the room, you’re only going to do it if you’re having fun!

Great Gift

STEM

Complete Kit

Instruction Booklet

Unique Gift Idea

Although this is extraordinarily educational, it’s also wildly entertaining for all ages, which makes it an excellent gift!

It’s not often that a science project can be fun and engaging, but this kit hits the nail on the head and fascinates children and adults as soon as they pull it out of the box.

Perfect STEM Project

Whether you’re a parent or a schoolteacher, you’ll quickly appreciate the vast knowledge that this can provide.

While being super fun and engaging, this one product provides young students with that essential hands-on experience they need to truly absorb this priceless knowledge and information.

Complete Kit

Everything is included - just add water!

Includes:

  • Rock Tumbler Machine and Barrel
  • 0.5 lb Assorted Rough Rocks
  • 4 Grit Packets
  • Mesh Strainer
  • Jewelry Fasteners
  • Rocks Storage Bag
  • Learning Guide

Illustrated Learning Booklet

Easy step-by-step instructions so that everyone can follow along easily.

Also included is a comprehensive learning guide on the history of rock tumbling, and explanation of all the rocks included in the kit.

Looking for specific info?

Customer reviews

4.5 out of 5 stars
4.5 out of 5
8,796 global ratings

Customers say

Customers like the appearance and ease of use of the science fundamentals kit. For example, they mention it looks like a professional unit, is easy to follow instructions, and is great for newbies. They appreciate the value. That said, opinions are mixed on performance, quality, noise, and size.

AI-generated from the text of customer reviews

233 customers mention223 positive10 negative

Customers find the science fundamentals kit easy to use. They mention that the instructions are nicely printed and easy to follow. They also appreciate that the machine works well and is great for beginners.

"...It's incredibly easy to use with a basic interface and just a few buttons...." Read more

"Easy to use and very effective!" Read more

"...are some findings included for finished rocks; and the instructions are reasonably good (accepting some significant caveats below)...." Read more

"...The instructions are very nicely printed and easy to follow, in full color too...." Read more

60 customers mention56 positive4 negative

Customers have good things to say about the appearance of the product. They say, for example, it looks like a professional unit, is well designed, and easy to use. Customers also mention that the instructions are clear and specific.

"...The instructions are very nicely printed and easy to follow, in full color too...." Read more

"...I’m on the second cycle right now and they looked BEAUTIFUL when I cleaned them off. I love this little machine and wish I could get numerous more!!!..." Read more

"...Overall product also appears nice and well built (with it being a gift I didn’t use it so I can’t attest to the functionality)." Read more

"...of the Dan&Darci machine; it looked solid and stable, it was professional looking...." Read more

50 customers mention50 positive0 negative

Customers appreciate the value of the science fundamentals kit. They say it's worth the price, affordable for enthusiasts of all ages, and a great purchase. Customers also like the layout and pricing, and mention that the entire purchase experience was great.

"...from Polly Plastics here on Amazon as they have a solid and reasonably priced kit...." Read more

"The tumbler works well enough, it's very reasonably priced, and generally a good kit...." Read more

"...detectorist and need something for fast coin cleaning that's very affordable then this is the tumbler for you." Read more

"...I have learned it is “okay” for a first time tumbler and a cost effective option, BUT it does tumble too fast for all stages, even on the lowest..." Read more

392 customers mention267 positive125 negative

Customers are mixed about the performance of the science fundamentals kit. Some mention that it works well and gets the job done, while others say that it stopped working and was unusable.

"The tumbler works great! I can't believe the difference between each cycle. The noise is not too loud considering you are tumbling rocks!!!..." Read more

"Easy to use and very effective!" Read more

"...I went to multiple outlets...and nothing. It wouldn't turn on at all...." Read more

"Works perfectly" Read more

258 customers mention131 positive127 negative

Customers are mixed about the noise of the science fundamentals kit. Some mention that it's much quieter than expected, with a plastic cooler that muffles the sound to almost nothing. However, others say that it is noisy and sounds like a waterfall, or fountain.

"...I can't believe the difference between each cycle. The noise is not too loud considering you are tumbling rocks!!!..." Read more

"...As with all tumblers, it can be rather loud so I opt to keep it in the garage with a cardboard box underneath to absorb some of the vibration...." Read more

"...They're a great starter tumbler, they're the quietest of the tumblers I've owned (harbor freight, tumblebee, and a lortone) and they definitely hold..." Read more

"...The machine is so loud that we had to put it in the basement garage...." Read more

252 customers mention107 positive145 negative

Customers are mixed about the quality of the science fundamentals kit. Some mention it's well built and easy to use, while others say it'll break a belt. Some customers also say it was defective from the factory and noisy.

"...working until I returned after about 15 minutes and once more the belt was thrown...." Read more

"...I've owned (harbor freight, tumblebee, and a lortone) and they definitely hold up...." Read more

"...Start second stage and goes 4 days before it shows error code...." Read more

"...one that can roll two barrels at once but very happy and great quality as advertised." Read more

57 customers mention31 positive26 negative

Customers are mixed about the size of the science fundamentals kit. Some mention that it's a nice size for what it is, relatively quiet, and well made. They say it'll fit most places and is perfect for trying new things. However, others say that the barrel is very small, the tank is smaller, and the drum is small only 1 lbs.

"I like the unit, is good for small batches of stage one and stage two...." Read more

"It runs. So far.The barrel is very small. Definitely the smallest I have ever seen.The sample rocks aren't interesting...." Read more

"...The size is perfect for a hobbyist and it’s easy to use." Read more

"...There's also an included strainer, but we found it much too small, and just used a small colander from our kitchen...." Read more

48 customers mention3 positive45 negative

Customers are dissatisfied with the auto shut off of the science fundamentals kit. They mention that the motor stopped after a day of tumbling, accompanied by a burning smell. Some say that the tumbler stopped running regularly, and some say that it died running the first cycle. Some customers also mention that it shuts off within minutes of being restarted.

"It worked well, never broke a belt but the motor has gone out. It ran constantly for almost 2 years!" Read more

"...off...went and prepared the rocks for the next...only to discover it was dead. The cord wasn't damaged. I went to multiple outlets...and nothing...." Read more

"...It would stop even without the barrel attached. I tried unplugging for a while and trying again...." Read more

"...when the power was turned on the tumbler made loud noises and motor stopped working...." Read more

Excited to See the Final Results of My First Batch of Rocks
5 Stars
Excited to See the Final Results of My First Batch of Rocks
I ended up buying 2 of these rock tumblers after starting my first batch and seeing how many more I want to tumble. With the said, I haven't completed the first batch yet. They are in the final polishing stage and I can't wait to see the results when they're through. Each phase thus far has created a different in the smoothness, color, etc. I rated noise a 3 because it is noisy, but that's really just the process not the fault of the tumbler. Rocks tumbling among other rocks is going to be noisy.
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Top reviews from the United States

Reviewed in the United States on April 1, 2024
I purchased this as my introduction to rock tumbling approximately six months ago and it has been on non-stop ever since! It's incredibly easy to use with a basic interface and just a few buttons. It can run for a maximum of 9 days without clicking a button and has 3 speeds. Though the instructions say 7 days on each stage, be sure to run it a little longer in stage 1 to get the results you want. Sometimes my stage 1 rocks can last up to 3 weeks! I imagine the manufacturers don't want first-timers getting discouraged when they open their tumbler to find out they have to wait up to 6 weeks for perfectly-polished material. As with all tumblers, it can be rather loud so I opt to keep it in the garage with a cardboard box underneath to absorb some of the vibration. I have yet to replace a band and it's still running as I type this review, I would be lost without it!
6 people found this helpful
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Reviewed in the United States on April 1, 2024
The tumbler works great! I can't believe the difference between each cycle. The noise is not too loud considering you are tumbling rocks!!! I placed in laundry room and cannot hear through the walls.
They provide you samples to tumble with one packet of each level of grit. So a basic starter kit. I think that is great for any product. I didn't use their sample as I had my own to tumble. So excited to keep using this to tumble my treasures!
2 people found this helpful
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Reviewed in the United States on February 13, 2024
This was purchased in 2023 as a Christmas gift for my son and he was immediately excited to toss into it a lot of gems he retrieved at a local gem mining place. The machine is so loud that we had to put it in the basement garage. Also, it vibrates so much that we had to put an oversized bottle (think Costco) of laundry detergent on either side of it to keep it from vibrating off of the table. I do like that it has a timer that you can set so it will automatically shut off once it's done. You fill it with rocks and water and add your first packet of ... dirt. Set your timer for the number if days indicated in the instructions and forget about it. It will turn off when the set time is reached. Then, you need to rinse everything out, add the rocks and water back to it along with the next packet, and repeat the process. In the end, my son was impressed with the results. But, he never asked me to buy additional packets of sand/dirt to do another round so for that reason I'm not sure it was worth the money but it does work as designed and has a lot of good features to allow you to set it and forget it, as long as you make sure it won't vibrate it's way off the table or across the room.
One person found this helpful
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Reviewed in the United States on April 10, 2024
Polishes rocks beautifully. A little noisy though. Great tool for those discovering rocks as a hobby.
Reviewed in the United States on April 14, 2024
Easy to use and very effective!
Reviewed in the United States on April 17, 2024
Works perfectly
Reviewed in the United States on April 3, 2024
Grandson is tumbling his first batch of rocks and it's working great so far.
One person found this helpful
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Reviewed in the United States on April 3, 2024
This thing works so good!! I’m looking for rocks to polish constantly!!

Top reviews from other countries

Translate all reviews to English
BRANDON W.
5.0 out of 5 stars Great for kids - some patience required
Reviewed in Canada on January 2, 2024
I bought this for my son (I love a good STEM gift) and so far, we've had a great time tumbling rocks. This kit has everything you need to get started. It is a bit on the noisy side so we run it in the basement. It works very well, but does take some time as you'll need to tumble rocks in stages, which can be from 5-6 days. Some patience required!
Baco-Rama
5.0 out of 5 stars Great bit of kit.
Reviewed in the United Kingdom on April 15, 2024
Everything you need to get you started. Even comes with some starter stones.
Endurance
5.0 out of 5 stars Hace lo que dice.
Reviewed in Spain on January 8, 2024
Muy educativo, mi hijo está encantado.
Pero hay que tener paciencia, tarda muchos días en pulir las piedras... algunas quedan del tamaño de una lenteja otras no. No desgastan por igual por su dureza y tamaño de origen.
Pero buen regalo.
Cliente Amazon
5.0 out of 5 stars Devo ancora provarlo
Reviewed in Italy on April 13, 2021
Speriamo che funzioni come previsto grazie
Berthold
5.0 out of 5 stars Erfüllt seinen Zweck
Reviewed in Germany on December 30, 2020
Die Steintrommel erfüllt voll und ganz ihren Zweck. Ich habe die "1. Ladung" getrommelt, das hat ca. 4 Wochen gedauert und ich bin mit dem Ergebnis voll zufrieden. Das Gerät ist diese 4 Wochen ununterbrochen ohne Probleme gelaufen. Für den Hobbyeinsatz ist die Größe ausreichend.
4 people found this helpful
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