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๐ Turn rough stones into dazzling gemsโquietly, professionally, effortlessly!
The Professional Rock Tumbling Kit by Blue Marble, part of National Geographicโs Platinum Series, features a large 2-pound barrel, ultra-quiet operation with a sound-dampening cover, and a versatile timer with day/hour settings and 3 speeds. This all-in-one kit includes rough rocks, polishing grit, a patented GemFoam polisher, and jewelry fastenings, making it ideal for both beginners and enthusiasts to create stunning polished stones indoors without noise disruption.






































| ASIN | B0C2JN3S9M |
| Age Range Description | 8 years and up |
| Age range (description) | 8 years and up |
| Brand | Blue Marble |
| Brand Name | Blue Marble |
| Customer Reviews | 4.3 out of 5 stars 586 Reviews |
| Educational Objective | Development of exploratory skills and manual dexterity |
| Included Components | Platinum Series Ultra Quiet Gem Polisher Kit |
| Is Assembly Required | No |
| Item Dimensions | 40.9 x 19.4 x 34.7 centimetres |
| Item Type Name | Ultra Quiet Rock Tumbler Kit |
| Item Weight | 907 g |
| Item dimensions L x W x H | 40.9 x 19.4 x 34.7 centimetres |
| Item weight | 907 g |
| Manufacturer | Blue Marble |
| Manufacturer Part Number | NGULTTUMBLER2 |
| Material Type | Plastic |
| Maximum Age Recommendation | 1188.0 |
| Model Number | NGULTTUMBLER2 |
| Set Name | Ultimate Rock Tumbler Kit |
| Size | One Size |
| Sub Brand | National Geographic |
| Theme | Geology |
| UPC | 810070622329 |
| Unit Count | 1.0 count |
A**A
Present for partner
Got this for a present for my partner and he loves it. This one was a upgrade from the last one he has, it has a bigger barrel. And it really is super quiet. It's out in the garage and every time I'm out there, I keep thinking I have washing on. Highly recommend.
P**K
Really impressed with the noise difference, seems really reliable so far
Perfect for those new to the hobby. If you are looking for the cheapest best option and this is it (there are cheaper but they are not the best). I wouldn't start with a model of any lower quality or with any less features than this one. They aren't kidding when they say its quiet. Honestly sounds just as quiet if not quieter than a modern dish washer or dryer. You could easily have this set up anywhere in your house and just hear a consistent hum. It's not grumbly and annoying either, its just white noise. The tumblers performance seems good so far, I am running sea glass through it now. I like that it has a larger barrel. It's wider at least which makes it easier to reach into and in my opinion allows the parts to tumble better because they have slightly more space to fall when they go round each turn. I haven't been nice to the thing, letting it collect dust and mud as I check things. It's held up to the grit and grime of tumbling. I'll clean it fully once this session is complete but I don't want to stop and clean every time so I'm just letting it go and seeing what it can take. The settings are simple to understand and the display is nice and clear letting you know exactly where you are in your process. I usually just scribble the info about what is tumbling on the front with a dry erase marker which is great with this enclosure. Another cool feature is it will keep the current time saved in the event of a power outage so you can just plug it back in and go. If you are just starting out, don't go with the $40 Walmart entry level kit they offer, upgrade to this one, it'll be well worth it. Buy once, cry once. Otherwise you will go through 2-3 of those cheaper models before deciding the noise is bothering you regardless of how well they work. Enclosed is the way to go.
R**N
Works great but noisy?
I love this tumbler! Sadly, the barrel popped only 3 months after I bought it and it's been making this clicking sound since. I think it was from tumbling pyrite? I cleaned it as best I could but the clicking persists. Can't find any tips on how to resolve it.
S**.
Rock machine
Is now half way through its first month long polishing cycle. So far is working very well, and the results are good
E**E
It tumbles rocks AND does not drive you insane
This thing has so many layers of soundproofing redundancy built into it, that people found it soothing and often used it as a white noise machine. It got a lot of rocks tumbled that way. Which is a huge step up from being driving mad by the never ending sound of falling rocks. Would recommend as both a rock tumbler and an exceptional white noise machine, but better than a normal one, because the sound its making is a real base sound that is actually shaking things a little.
Trustpilot
3 weeks ago
2 months ago