MJR Tumblers 1 Pound 36 Silicon Carbide Rock Grit Extra Coarse

So frustrating!!! I was so excited to open the tumbler after the final polish, only to find dull rocks. I used this brand a few years ago and was disappointed. I ordered it again by mistake but figured I would give it another try. TERRIBLE! Such a waste of money!!! I am having to repeat the polish stage with a different brand and wait another week.

The size bag is perfect .it preforms great. It usually arrives before its eta. Its a good value for the size package.i use a large rock polisher and it does many loads of rocks

Not that good.

it does the job pretty good, I use it in a tumbler to sand large pieces instead to have to sand by hand.

its grit all 60/90 grit is the same

This product was phenomenal. It helped me take a whole week off of the time needed for my tumbles! Highly recommended if time is a concern!

Wasted a week trying to polish with this stuff. It did nothing.

Liked the quantity.

This product is not a polish. It doesnt shine anything and took the sheen off items that were already polished. Do not purchase this polish. It doesnt work.

Not that good.