NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler for Adults & Kids with Durable 2 Lb. Barrel, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Rock Polisher

My 7 year old loves this, it was easy to do and worked perfectly. It only comes with 1 pack of tumbling supplies and it's loud. We set it up in the garage so the noise wasn't ever an issue and we plan to buy more tumbling gravel

This is my first rock tumbler ever so please take that into consideration. I had it in my "saved for later" until I saw it on sale. It took me a while to do this review because I wanted a successful batch first.It's small which is perfect for my small (crafting/beading/jewelry making/lapidary) workspace. I live in a tiny one-bedroom studio apartment. I was expecting the noise to wake the neighbors; however, it is very quiet..I believe it's due to the rubber barrel. (I'm one that has ran dishwashers at night to help me sleep...so I actually like the constant sound.) No noise complaints so far..lol.After running the small batch of rocks that came with it...using the sample grits & polish that also were included, I read many reviews & did a lot of YouTube-ing as the rocks never got shiny. I found that National Geographic brand tumblers are good, but the grit/polish...not so much. On my second try, using silicon carbide grits & aluminum oxide polish, (I couldn't find any information about what kind the Nat Geo was) the stones & gems came out nice & shiny. So you may want to spend a little more to get better results. I do use the National Geographic brand ceramic media & have been pleased with it.I only run it on level 1 speed as, according to my research, most comparable models/brands have a slower rotation speed than this National Geographic one on level 1.The included instructions are clear & helpful & will tell you running times & speeds to use. If you purchase another brand of grit/polish, it may also come with instructions regarding running times & such. The settings on this tumbler are very simple & easy to use.I'm very happy with my National Geographic rock tumbler & would recommend it.

The media could not be loaded. I just got this rock tumbler kit today, and so far I am very pleased with it!It is quiet, and doesn't take up too much space, and it comes with rocks to tumble, a jewelry-making kit, an extra pully band, foam and grit, and a nice booklet on the rocks included with the tumbler.A very nice little kit from Nat Geo, for a good price!It definitely does not come with enough grit though.I purchased additional 120 grit aluminum oxide to use with for my future rock tumbling.I might get a different grade of grit later, but to start out 120 aluminum oxide seemed most likely to give my rocks the best shine, without grinding them into dust.I can also say that the wheel looks a bit wiggly, but it doesn't seem to hinder the machine at all.I am trying an experiment right now where I soak my rocks for 24 hours prior to tumbling them, and then I am going to add just a bit of mineral oil to the water, grit and foam.I am testing my rocks in; vinegar, mineral oil and water/ mineral oil and water/ water.I will update this review of the results, after I have results to post.UPDATE: DO NOT USE DARK COLORED/BLACK GRIT/SAND/POWDER WITH LIGHT COLORED STONES!It grinds into the stones, and changes their color, based on the grit/powered/sand you're using!After 3 days of tumbling to each batch of stones, these are my results:- The vinegar, mineral oil and water mix:Shined and cleaned the rocks, and seemed to soften them, creating a visible effect in their polish.- The mineral oil and water:Also shined the stones, and seemed to soften them, without much difference in their cleanliness, and added a visible effect in their polish.- Water:Did not soften or clean the stones, and had less of an effect on their polish.OVERALL RESULTS OF EXPERIMENT:I think pre-soaking the stones in mineral oil and vinegar had the most noticeable effect on the stones polish.They seem to soften in the mineral oil, and the vinegar does get them clean pre-polish.I also tried tumbling the stones in mineral oil and water, with the aluminum oxide powder, and found that the dark colored powder ground into the stones, specifically the Tigers Eye....Which is NOT the result I wanted.Upon further experimentation and research, I have decided to use clean/white sand and colored sand as grit, to see if those work better as a polishing medium than the aluminum oxide.If my theory is correct, pre-soaking the stones in mineral oil and vinegar and then tumbling with the color sands should grind the sand color of my choice into the rocks.Will update later with pictures, if/when possible.So far, it's a going well and I'm having fun experimenting with geology!Yay, shiny rocks! Thanks Nat Geo!

This is the third National Geographic Rock tumbler that I have purchased. I have been very happy until now with its performance. I tumble rocks 24 hours a day, 7 days a week. This 2 pound tumbler has stood up to the challenge, lasting at least a year. That is, until this one. I purchased it in June, 2023. Today, August 31, 2023 I went to check on it because I didn't hear anything. There was an E showing on the screen. I unplugged it and then plugged it back in. Pressed start and NOTHING. Repeated several times and still nothing. I am very sorry it did not last longer and will be looking for a different tumbler.I would like to update this review. National Geographic contacted me about this review. It turns out that they have a one year guarantee on their tumblers. I have been happy with the results I get from this tumbler, just disappointed that this tumbler died so quickly after purchase. It has now been replaced by National Geographic. I am very happy with their prompt attention to this matter.

Excellent choice for my grandsons. They enjoy it.