National Geographic Rock Polishing Grit Media - 3.28 lbs for Tumbling Stones

Drew J.: In my experience, this media help give a great final polish during stage 4 tumbling. I made the mistake of trying to use it for both stage 3 and then stage 4, after using for stage 3 the media was impregnated with the pre-polish grit, I bought a second bag of this media and have been using it for the stage 4 polish cycle and have phenomenal results.

United States on Sep 21, 2023

C Taylor: Perfect amounts for someone who is polishing rocks in non commercial setting. Well labeled.

United States on Sep 18, 2023

Jennifer K: This was the best value! Almost all other brands cost a lot more. These come in tubs with lids and a scoop. Well worth it!!

United States on Sep 17, 2023

Don Spencer: This is a ton of grit and it came with instructions and a handy scoop! Very pleased!

United States on Sep 16, 2023

firemansflame28: I've started rock tumbling and enjoy the finds. Be they petrified wood, river stones or precious stones. Its neat and it keeps the grandkids occupied with their finds. It takes about a month to go thru the whole process. The foam worked wonders with our petrified wood. I know the instructions said 3 days, but we did 4 just in case and the results were awesome. Loved it. Would buy again.
The use is approximately 6 times usage. So good luck rock tumbling friends.

United States on Sep 12, 2023

Amazon Customer: I was a bit concerned by some of the negative comments but am so glad I went ahead and bought the product. It works very well and I will buy again.

United Kingdom on Jul 12, 2023

Maria del mar Pérez Prat: Más cantidad que con la compra del tambor de pulir, que solo llevaba unos sobres para un programa de pulir, aunque en la caja no he encontrado la cantidad que lleva y lo he buscado en la descripción del producto en Amazon, producto de calidad y bastante satisfecha con la compra de national geographic, tal vez el precio es un poco elevado

Spain on Jul 09, 2023

Amazon Customer: My partner is very happy with this product. Rocks come up nicely and for a reasonable proce

Australia on Jun 28, 2023

AndreaAndrea: Tras 28 días (7 días por step) y 3 días con GemFoam, conseguí que mis piedras brillasen y estuviesen lisas. La verdad es que no obtuve estos resultados a la primera, es un proceso lento, pero gracias a informarme y a prueba-fallo, conseguí que quedasen bien. Y el GemFoam posiblemente ha sido el causante del brillo.

Spain on May 15, 2023

Alan Britton: Everything needed in it plus a bag of stones.Delivered promptly.Very good purchase.

France on Sep 14, 2022