Rock Tumbler Refill Pack – Gemstones

We’ve scoured the globe and collected the best raw gemstones for rock tumbling!

This rock tumbler refill kit includes:

The ultimate variety with 9 types of raw gemstones (1 lb in total)

4 courses of premium polishing grit that will turn your “stones” into “gemstones”

Jewelry fastenings: 2 necklace, 2 earring, 1 keychain, 1 ring

Discover with Dr. Cool’s education adventure guide written by teachers

Boys and girls will love witnessing the incredible transformation of these gemstones and adding them to their rock collection!