









✨ Elevate your rock tumbling game—polish like a pro! ⚙️
The MJR Tumblers Refill Grit Kit is a meticulously crafted 4-step polishing system designed for 12 lb rock tumblers. Featuring 36 ounces of graded silicon carbide grit and aluminum oxide polish, including a superior green silicon carbide blend for faster, sharper cutting, this kit ensures professional-quality results. It comes with free polishing instructions and is perfectly portioned for hassle-free use, making it ideal for hobbyists and pros aiming for flawless, showroom-worthy stones.







| ASIN | B07F3LNC55 |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (49) |
| Date First Available | 25 August 2018 |
| Educational Objective(s) | Learn about rock types and mineral properties through hands-on polishing activities |
| Manufacturer recommended age | 8 months and up |
| Manufacturer reference | MJR12pgk |
| Material Type(s) | Aluminum, carbide |
| Package Dimensions | 21.8 x 13.3 x 4.4 cm; 1.02 kg |
M**E
Nice all the way!
B**G
Good
C**D
You get 2.5 lbs of media. Utterly misleading title. Who measures by the weight of media by the rocks you can allegedly tumble?
A**H
Says the polish is 12k but when you get it you find put its 1200. This has me abit irritated, false advertising
C**E
Liked grit 1and 2. Prepolish wasn’t bad, polish wasn’t good. Didn’t polish rocks like I expected.
Trustpilot
3 weeks ago
1 month ago