Rock Tumbler World Geology

A fun, educational STEM toy for kids, this rock tumbler kit is great for the whole family! Your kids will enjoy collecting and polishing gems while learning how gemstones are made. With this set, you’ll receive 9 rough gemstones a full pouch of rough gems and polishing grits, a noise reduction cover, storage bag and more!

What's in the box
Rock Tumbler Machine

Leak-resistant Barrel