MJR Tumblers 1 Pound 36 Silicon Carbide Rock Grit Extra Coarse

. Breaks down too soon. no trace after 36 hrs of tumbling.

I ended up using this as a stage 3, seeing I ruined 3 stage 4 tumbles,

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!

its grit all 60/90 grit is the same

. Breaks down too soon. no trace after 36 hrs of tumbling.

Love this 1200 grit !! And the company is awesome to deal with!!

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

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.

Liked the quantity.

. Breaks down too soon. no trace after 36 hrs of tumbling.