3LB Rock Tumbler Grit and Polish Refill Set, 4-Step Professional Polish Rock Tumbler Grit to Unlock Stunning Polished Stones. Ideal for National Geographic, KomeStone, and Other Polishers and Tumblers

Works as described. Shipping was fast. Kids love their rock tumbler so we use the grit and polish a lot. Would recommend and will buy this again.

My middle schoolers had a great time with some agates and a rock tumbler. The kids were excited to open the tumbler every week and see how the rocks had changed. The grit was easy to use and after 4 weeks our rocks were shiny and beautiful.

Great product for the price! I’ve used many different brands of grit in my rock tumblers and this complete kit worked great. Loved that they included the ceramic cylinders as well.

Did exactly as advertised. Instructions or clear.But the measuring spoon is to big to fit in grit container.

Great product. Order shipped quickly and arrived in excellent condition.

Seems to do a good job; I've gone through one round of tumbling and polishing and it seems to do the same job as the stuff that came with our rock tumbler, and it's a lot less expensive. The only issue is that the scoop provided doesn't fit inside the containers, so you end up with some spilling. It's not too hard to get around (I pour it over the tumbler, so the excess falls in).

This looks like a very nice and sturdy unit. They give you several belts for the future. There’s enough grit for one batch. There are four stages that take about one week apiece so it’s nearly a one month long project for a handful of rocks. One issue was where to put the thing. It makes a lot of noise. Plus it walks off the surface or walks around so if you put it on the countertop, eventually it’s going over the edge. I am in stage two and was very impressed with the results of stage one; they give you some pretty square gem cuttings if you want to do those. I chose to do common gravel that I find in my road. I do believe they’re going to be beautiful in the end.

I bought this product to refill the abrasives for my rock tumbler - the elements are great - work well and made for easy clean up. The instructions were thorough. I'm happy with this - and will get it again.