C1 Rock Tumbler Kit - 2.5LB Rotary Rock Tumbler for Adults & Hobbyists, Quiet Rubber Barrel, Adjustable Timer & 3 Speeds, Complete Gem Polishing Kit with Memory Function

Edit 11/29/23. Still love this tumbler. Had a problem with it. Contacted customer service and they took care of it right away. Awesome company, and the best service! Makes a terrific gift for the holidays. We got one for our grandkids this year. Got this tumbler for Christmas. Favorite gift this year. I Love going out and Beaching and finding Afates, Jasper and Quartz treasures. This unit is great! It's quiet, works well and the company has responsive customer service. It comes with a beautiful color instruction manual. The manual isn't bad. But I've learned from groups that tumble on Facebook and forums that there are several things tumbler manufactures get wrong in the instructions. The biggest one is speed. This tumbler spins too fast in all speeds and will bruise stones easily if you run it in speed 3 or 2. So always run it on speed 1. The manual lists RPMs at the axle I timed the RPMs of the barrel and that is rotating at 70-90. It is still faster than recommended but if you fill the barrel as close to 3/4 as possible along with ceramic filler you can minimize bruising. I included picks from my 2nd Tumble and they turned out good with speed 1 and mostly full tumbler. After first cycle you will need to have filler for other 3 cycles. Ceramic works but if you don't have enough ceramic to fill close to 3/4 I found decorative glass beads at the dollar store that work great as filler. I also use 2 tbs of Borax between each cycle and run for 2 hrs will clean the grit from rocks and tumbler pretty well which is essential por good polish. After polish cycle I run for 2 hrs with 2 tbs Ivory soap flakes to help increase shine. Also be careful in cycle one with small stone as this tumbler turns very fast and small stones can dissappear if you run it for a full week. So I check after 4 days to see if I should pull them out and sub in glass beads as filler. Some stones make take more than a week in first cycle. Agates take awhile and you don't wants pits or irregularities to carry grit into polish cycle. So I try to get very smooth in first stage. Anyways this tumbler is alot of fun and I am looking to purchase other tumblers now. I am particularly interested in a vibratory tumbler, they are much faster and use less grit. Potentially you can have polished rocks in a week instead of a month.

Great little rock tumbler. My 7 year old has had so much fun tumbling rocks with this. It does a great job and I have no complaints. Booklets include gives good instruction, settings are easy, lid is easy to come in and off if you follow directions. Doesn’t come with enough tumbling powder but I ordered more knowing I would have to

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..

Great beginner tumbler. Kit includes everything needed to get started right out of the box (tumbler, stones, grit kit, jewelry findings, instructions) and a generous 1 year warranty. Digital controls regulate on/off, rpm, and number of days per tumble and work smoothly and accurately. Grits include coarse, medium, fine, polish, and ceramic tumbling beads to cushion stones during the tumble. Stones are dime to quarter size quartz, jasper, etc and do tumble nicely. The jewelry findings are definitely kid oriented but are a nice inclusion. Only negative is that some reviewers find that the drum spins too fast for a really good polish. T his is discussed on many Youtube videos. I feel the tumbler is fine for kids or amateur adults and certainly a step up from the others I have used in the under $100 dollar range, especially given the generous 1 year no questions asked guarantee. Recommended.

This is an excellent tumbler that does what it's supposed to do. It provides a simple introduction to rock tumbling for the young adult beginner yet will give you beautiful professional results if you use it the way the pros do. You might not get pro results following the instructions the first time. Remember, it's just an introduction providing an overview and demonstration of tumbling. If the kit ends up giving you nicely rounded but very dull unfinished stones like I experienced, you'll be disappointed of course and think the tumbler stinks. But make sure you watch a few pro tumbling YouTube videos after your first experience with this kit. Then you'll know what to do the next time. For example, I found Cycle #1 at Speed #3 just too fast. The stones got really beaten up, and the tumbling was pretty loud. It might need to tumble much slower. I also tumble coins I find ocean beach metal detecting. This tumbler is perfect for cleaning up those nasty coins that have been in salty sand/salt water for weeks and months. I've attached some before and after self-explanatory pics including rows of washed and dried coins, drums before and after each type of coin and the tumbling medium. I won't go over the contents of the whole kit. Other reviewers have listed everything. It may seem at first like a cheaply built toy tumbler when you first pull it out of the box having been very nicely packed, but this is not a junky toy. It is built to do the job. If you treat it right, it will last. When you open the box, don't take the tumbler out yet. Pull out the water resistant, very well written and thorough manual. Read it cover to cover. I could describe all the dos and don’ts here, but the manual does the job quite well. I've read the reviews. From the problem descriptions, you'll understand that some folks simply didn't read the manual through. But if you have any problems at all or don't quite understand what to do contact Customer Service. You'll get Anne or Daisy. Daisy is 24/7 amazing. She’ll talk you through any issue or problem you’re having. Customer Service is not an easy job. But she (and Anne) will not stop until you're happy. You've seen their great reviews. But they're understatements. Daisy.....10 stars!

This is my first rock tumbler. I ordered it based on good reviews and fair price. I have finished two loads of rocks, and in the middle of my third. My first load wasn’t as shiny as I had hoped, but I think part of the problem was that I didn’t leave the rocks in the first phase for long enough. You want to make sure that all the divots and bumps in the rocks are smoothed out in phase one before moving to phase two. This might require more than one week in the tumbler for phase one. If you go past one week, you will need to add more grit, but the kit only comes with enough grit for one week at each phase to complete one round of tumbling. I ordered replacement grit from the Rock Shed based on reviews and my second load using their grit came out shinier. The belts on the tumbler do require periodic replacing. My first belt lasted about 7 weeks running 24/7, but my second belt only lasted about 3 weeks. My husband suggested using a little WD-40 on the third belt. I haven’t done that yet so can’t report. Since I am on my last belt that came with the tumbler, I went to order replacement belts on Amazon but the Koolstone store said the product was not available. I was afraid to order belts from a different brand for fear of the belts not fitting properly. I contacted the seller over email and they replied within a few hours that they would send out replacement belts! Very impressed with the customer service. We have had the tumbler running in the garage. We can hear it running through the door into our downstairs. It’s like a soft white noise that doesn’t bother me, but my husband who is noise sensitive asked when I was going to turn the tumbler off. I had to reply, “Never! I am going to be making all my rocks pretty for the rest of my life!!” I LOVE running the smooth and beautiful rocks through my fingers. They are so silky and calming. I only wish I had ordered a larger tumbler, so eventually will have to add another. Totally happy with this this purchase! UPDATE: after taking with Daisy at customer service about the replacement belts, she got them in the mail and I received them about a week later. Haven’t needed them yet but when my current belt wears out, I will be ready!

Really great product, and their customer service is second to NONE! Daisy got my issue fixed very quick, and was very knowledgeable, and nice throughout the whole process. I definitely recommend getting this product and with the great customer service they will continue to get my business!

Love this little tumbler. Works well, and has held up over the year+ that I've been using it. And customer service is really helpful: I just needed some replacement belts (those wear out naturally, especially with how much I use it), and they were quick and super helpful :)

My 8yr old daughter wanted a rock tumbler for her birthday and I am very happy with this model. It works great, it’s easy to use, and it’s easy to clean. The only thing I would say is that you should read the instructions closely because I didn’t read them closely enough for the final stage. If I had, my rocks would have been more polished had I made sure to follow the steps. That being said, it was my own fault because the instructions were clear and easy to follow, I was just in a hurry😄. I’ll update in the next batch when I follow the instructions with more precision. Customer service is very helpful and you get free belts and another rock sample if you send in the code. The tumbler does make some noise, but that’s easily solved if you put it in your garage or a corn of your home away from everyone. My daughter loves how the rocks turned out and is very excited for the next round. As someone who always wanted a tumbler, I enjoy spending time with my daughter on this pursuit. I am very happy with the purchase and am looking forward to more rock adventures.

I love my little tumbler! It’s been running 75% of the time for the last couple months. It’s 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.

It will be hard to manage sleep in a small house but glad theres a pause button for that scenario. Good price for a solid until no complaints otherwise.

Très satisfait du produit. Est arrivé en temps. Très bien emballé.

I bought this just because I love picking rocks, had one years ago, and decided to get back into it. This is my first round with it and it’s working beautifully. Not to the fully polished stage yet, but no problem so far! I am very happy with it. Nice rocks that come with it as well. It’s noisy, but I’ve got it on carpet in the basement and that’s ok. Well, I got to the polish stage and my barrel expanded and got grit into the holes at the back. I rinsed it out, dried it out as best I thought I could and it would not run properly. I contacted customer service to see what I should do next. They got back to me promptly and asked for a video, which I sent, but I felt it was better after drying out a few more days They looked at the video, decided it was not perfect and sent me a new tumbler. I could not ask for better service, and the new ne is working just great.