Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned

I absolutely love this rock polishing grit. I have had very good luck with it.

Great product and have used it several times.

MJR Grit is a great product, always does a great job for me, quality grit at a decent price,

Great product.I noticed some complaints about the amount in the bags they ordered.If you ordered for a 3 pound tumbler, that’s what you get. Enough grit in each bag for one run of a 3 pound tumbler.Not sure what they expected….?Anyway, I get great results with this grit.I do do one more step with Tin Oxide but it’s really not necessary.Final step of borax for a day to get the rocks good and clean.Very happy with this product.

Having used this grit assortment many times before I know I can depend on this product to work well with my rock polishing. For fellow polishers with a 15 pound tumbler, this a good kit to buy. It prevents you from having to purchase multicable smaller kits.

I been tumbling rocks for 8 years now .This is the best that i have found .But they are misleading the customer they show full bags of grit and polisher But you get very little in the bag maybe enough to tumble 2 of 3 pound barrels . I know the price is very high for what we get .I can not afford it any more 2 times i ordered & both times to little of product .

Great stuff for rock tumbling

Arrived quicky and works just fine. It arrives with a coupon each timeI purchase this item, but I am unable to use it on this site, but I will continue to purchase this grit in the future.