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๐ชจ Transform Rough Rocks into Polished GemsโQuietly, Quickly, Confidently!
The KoolStone C1 Rock Tumbler Kit offers a professional-grade 2.5LB capacity with 75% noise reduction thanks to its rubber barrel. Featuring 3 adjustable speeds, a 9-day timer with memory and automatic shutoff, it delivers faster, precise polishing results. The all-in-one kit includes assorted rough stones, polishing grits, ceramic media, jewelry fastenings, and a detailed guideโperfect for hobbyists and families. Durable and easy to maintain with a replaceable drive belt, itโs backed by a 1-year warranty and 90-day money-back guarantee for worry-free tumbling.










| ASIN | B09YM33DGD |
| Age Range Description | Suitable for children aged 13 and above |
| Best Sellers Rank | #183,030 in Kitchen ( See Top 100 in Kitchen ) #2,822 in Tumblers & Water Glasses |
| Brand Name | KoolStone |
| Color | Brush Edition: C1 |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,825) |
| EU Spare Part Availability Duration | 1 Years |
| Educational Objective | STEM |
| 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 centimeters |
| Item Type Name | Rock Tumbler |
| Item Weight | 2.84 Kilograms |
| Manufacturer | KoolStone |
| Manufacturer Maximum Age (MONTHS) | 1188.0 |
| Manufacturer Minimum Age (MONTHS) | 48.00 |
| Manufacturer Part Number | KS20220422 |
| Material Type | metal, metal 1.๏ผTyre grade rubber barrel top-quality stainless steel. 2.) If you received package missing parts or damaged no worries please feel free to reach out at [email protected] to take replacemenet. 3.) Any problems before purchasing please reach out at [email protected] to get answer. |
| Model Number | KS20220422 |
| Number of Batteries | 1 AA batteries required. |
| Number of Players | 1 |
| Operation Mode | Automatic |
| Power Source | manual |
| Set Name | C1 Rock Tumbler Kit |
| Size | L |
| Supported Battery Types | No batteries required |
| Theme | Perfect gift for rock lovers and hobbyists to create stunning polished stones. |
| Unit Count | 1 Count |
M**T
I bought this to tumble some seaglass that I had collected that just wasn't quite tumbled enough. The kit comes with a set of rocks and 1 pack each of 4 different grades of grit from Corse to very fine. They include an extra belt, stuff to make jewelry, great instructions and a card to email for additional rocks. It's very quiet, sturdy easy to use and good quality. I did email for extra rocks and it was great customer service. I mentioned that I didn't get the extra belt when I communicated with Daisy for the additional rocks. She was very helpful and professional and said that she'd make sure I got a belt with my rocks. Within a week I had my product and she followed up to ensure I had received it. Awesome all round.
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..
N**3
Worked for a month then the motor gave up, I followed all the instructions on weight. The belts are also poor quality, went through 2 In just a month.
A**S
I give this a 5 star mainly due to Daisy in customer support. When the tumbler arrived it would not work at all. I was going to return it, but i noticed the great customer service reviews. Not only did I get a rapid response , but was given concise instructions on what to do. I took a video, sent it to Daisy and the very next day was told that the problem was determined it to be a faulty adapter. She sent a new one, which arrived quickly. I plugged it in and it has been running for the past five days without a hitch. Thank you Daisy. Time will tell if I can polish rocks or not. After using the tumbler for about two weeks, polishing rocks that had already been worked using another tumbler, I am thoroughly happy. Considering the cost I feel it is a great little machine. I must admit that I purchased some 8000 grit, and found it did a better job than the 1200. The tumbler is quiet, (I have it in my den), runs without a hitch, and is easy to use. The combination of great customer support, and a machine that does all I want, I would recommend this, especially to the beginners and young geologists. The rocks look better than my mediocre photos.
R**K
I bought this for my partner as she is an artist and would help her with her art. The tumbler stopped turning and I contacted the seller. They quickly sent us a replacement. We are very happy with the seller and recommend them. Thank you ๐
Trustpilot
1 month ago
3 days ago