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๐ Turn rough rocks into polished treasuresโquietly, quickly, and effortlessly!
The KoolStone C1 Rock Tumbler Kit features a large 2.5LB rubber barrel that operates 75% quieter than plastic alternatives. With 3 adjustable speeds, a 9-day timer with memory and automatic shutoff, it delivers faster, precise polishing. The comprehensive kit includes rough stones, polishing grits, ceramic media, spare belts, and all necessary accessories, making it ideal for hobbyists and families eager to transform ordinary rocks into stunning gems.
















| ASIN | B09YM33DGD |
| Age Range Description | Adult |
| Best Sellers Rank | 3,319,238 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 510 in Polishing & Buffing |
| Brand Name | KoolStone |
| Colour | C1 |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,134) |
| Educational Objective | Creative Skills |
| Included Components | 1-Year Warranty Card, Illustrated Learning Booklet, 1A Power Adapter, Jewelry Fastenings, Mesh Strainer, Screwdriver, 1LB Assorted Rough Rocks, 3 Belts for Spare Use, 4 Bags of Polishing Grits, 1 Bottle Ceramic Tumbling Media, Rock Tumbler Base, 2.5LB Capacity Rubber Barrel |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | No |
| Item Dimensions | 28.5 x 22.9 x 14.5 centimetres |
| Item Type Name | Rock Tumbler |
| Item Weight | 2.84 Kilograms |
| Manufacturer | KoolStone |
| Manufacturer Part Number | KS20220422 |
| Material Type | Rubber |
| Maximum Age Recommendation | 1188.0 |
| Minimum Age Recommendation | 96.00 |
| Model Number | KS20220422 |
| Number of Batteries | 1 AA batteries required. |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | AC adapter/electrical |
| Set Name | C1 Rock Tumbler Kit |
| Size | L |
| Supported Battery Types | AA batteries |
| Theme | Perfect gift for rock lovers and hobbyists to create stunning polished stones. |
| Unit Count | 1.0 count |
A**S
Great product. Works well, tumbles relatively quietly in the rubber drum. Easy to load/unload rocks for the various stages. Easy to set up the duration in days and speed required. Excellent instruction manual. Would recommend to buy for anyone interested in seeing the beauty hidden away in some fairly common rocks..
D**H
It is a solid little unit that seems to do its job. Our rocks didn't come out quite as polished as we'd hoped, but I think it's because we did not clean out the unit as thoroughly as we should have between steps. We are looking forward to running it through its sequence with fresh rocks again soon. We did have a minor breakdown with the lid, but Daisy replaced it quickly and at no cost to us.
G**H
For a first time rock tumbler this is great! Super easy to use- the instructions are clear & simple to follow. The machine is easy to use & pretty quiet for what it is, but I also have nothing to compare it with. It's small enough I'd take it camping with me as long as I've got an electric site. I've just started the second phase & the first phase worked well!
L**R
I love my little tumbler! Itโs been running 75% of the time for the last couple months. Itโs done a great job. The company offers extra belts, make sure you take them up on their offer. The original cracked and broke off my machine yesterday. Super easy to replace as there is open access to the wheels and the belt pops on like a rubber band.
C**.
The item itself works well. The item came with three power drive bands for tumbler. Two bands broke before 2 of 5 steps of polishing finished. I contacted vendor for new bands as advertised by vendor. I provided my address in Missouri via Email. Received an email they would send replacement bands immediately (stated I should receive in 5 to 7 days. 8 days I received email asking if I had received the bands. No I have not. Next day I got the proof of delivery, delivered to a PO Box in Carbondale West Virginia. This state and city is 820 miles and 13 hour drive from my address. I boxed tumbler in box, attached my return label and dropped at my Post office. Amazon credited some of my payment back.
Trustpilot
3 weeks ago
1 month ago