2lb of MJR Tumblers Premium 400/600 Pre-Polish Aluminum Oxide Rock Polishing Grit for Step/Stage 3, MJR Tumblers is a Disabled and Veteran Owned Company Proudly Located in USA

The best polish. Don't trust the kits on here, you need 8000 and above in final stage to get a good polish. This works really well. Always burnish afterwards to complete the stones.

GOOD STUFF! Much better than What National Geographic Sells.

This polish made my rocks SUPER GLOSSY! Definitely recommend and I will be purchasing again.

Was nice contributor to my holiday projects and was reasonably priced

It is the same as I already have , did not make stones shiny

Be patient tumble a long time and you will be amazed how shiny your rocks will be. Just remember that the finished piece is no better than the base underneath the final finish. Like a paint job on your car, if there are rough patches they’ll still be there at the end.

We got some rock tumblers around Christmas and they’ve been running since then. We could never get the polished shine we expected, some of these rocks have been final polished or burnished for weeks without getting them to shine. I decided to give this product a try. It arrived four days ago and I immediately started the problem rocks tumbling in it. I just checked today and they already have a beautiful shine when dry! The grit is pricey, but you cut can cut the cost in half by buying five pounds.

Amazing. I was about to give up because my rocks were just not getting polished very smooth but not polished read the reviews for this product and decided to try it . I'm only on day 4 of polishing with the 12000 grit and my rocks already look amazing. Will 100% be buying again in the future!

Great product great delivery, 100* / 100*

I’m new to rock tumbling and for my first batch used the grits that came with my tumbler. After the full 4 week process I wasn’t happy with the shine, so I sought out a better product for a final polish rather than resorting to mineral oil and faking it. The difference this made with 4 days as a second final polish was amazing, even basalt has come up with a shine. I added a spoonful of baking soda to the barrel with this and there was no fizzing/pressure, and rinsing off was easy and quick. I’ve not tried this as step 4 (rather than adding a second polish as step 5) but will do on my next batch.

Buena calidad y precio, pero no me sirvió pues no me dió buen resultado para lapear metal, debido a que aún cuando su consistencia es muy fina, concluyó que necesito un material más fino para obtener un pulido acabado espejo lo cual no obtuve con este producto.

Only if 5 lbs but an yes

Only used on 1 barrel of “beach rocks” so far but very impressed with the level of polish it provides, used 80-200-600-1200 grits a week at a time then a final polish with this, Much Much better finish than just the “standard” 4 stages of rock tumbling provides.