MJR Tumblers 1 Pound 36 Silicon Carbide Rock Grit Extra Coarse

love ,love,love to see a plane rock turn into a shiny gem

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

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

Great product I would definitely buy again

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

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

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

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

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

Liked the quantity.