Polly Plastics Polypropylene Plastic Poly Pellets - 1 lb Rock Tumbling Media for Enhanced Tumbling Action

Just what we needed to add to our tumbler to get better results.

I tried my first batch of rocks without using filler media and it didn't turn out like it should have. After further research I purchased the above plastic filler media and then some ceramic filler media and had great success. The ceramic filler media is for the 1st and 2nd steps while the plastic filler media is for the 3rd and 4th steps in the tumbling process. The plastic and ceramic do different things so make sure you get both in order to get the best results.

I got a rock tumbler for Christmas. It was more for the kids, but we were looking for an opportunity to polish rocks we found at the beach and do it as a family. At the end of the 4+ week process, we found that the rocks were still a little dull. So we got these plastic fillers and ran it through the polish process again because we read that this helped with the overall shine . It definitely did. The rocks break down during the early phases of the tumbling process and they need some filler to keep the friction during the tumbling process to keep the barrel full. I think if the barrel isn't full, the barrel doesn't get enough friction to polish properly. It has been so much fun to do this with the kids. They love the end product. We already started the next batch of rocks. Fingers crossed, we are hoping for some more polished results. Overall, a fun family activity.

The media worked well but I was hoping the pellets would be a bit larger. I had trouble saving the pellets for future use because they fell through my straining device.Aside from that, they worked well and saved my rocks from pounding each other to dust.

Helps get a nicer shine.

Works great with my rock tumbler

I’ve tumbled rocks before but never with media. The rocks come out a lot nicer. The plastic beads in the final stage gives the rocks a nice shine.

I'm new to rock tumbling and people I have spoken with have universally said their biggest complaint was the noise. The tumbler I bought was supposed to be quieter than average but I bought these to help out even more. Where I noticed a big difference was between the first and second grit I didn't add additional pellets to compensate for the loss of material in the first tumble and it was significantly noisier. In the 3rd grit phase I added new pellets to get the drum about 2/3 full and the difference in noise is amazing. Since I haven't run any without the pellets I can't speak to how it is affecting the performance of the tumbling vs without the pellets but I'm happy with the results I've seen so far.