Product Review

This grit is perfect for use with rock tumblers of any brand!

Take your stones from rough rocks to polished gemstones in just 4 easy tumbling step using National Geographic's Grit Refill (Rock tumbler required and sold separately).

This product contains:

- 4 stages of grit in easily resealable containers
- 3.28 lbs of grit, enough grit for about 8-10 pounds of rocks.

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