National Geographic Hobby Rock Tumbler Kit
No. 0412 gifts · Kids

National Geographic Hobby Rock Tumbler Kit

$59.99 4.5(25,925)

About this product

This National Geographic kit by Blue Marble turns rough rocks into polished gemstones, per the listing. It includes the tumbler, four polishing grits, a sifter, nine types of real rough gemstones and a full-color learning guide. The leakproof rubber barrel is designed to reduce noise, and a one-touch timer sets the number of days for each cycle with automatic shut-off. It's recommended for ages 8+.

Why We Like It

Watching dull stones turn glossy over a few weeks is genuinely exciting for kids, and it's a great hands-on science project.

Highlights

  • Tumbler + 4 polishing grits
  • 9 types of rough gemstones
  • Quiet rubber barrel
  • One-touch timer
  • Ages 8+
national geographicrock tumblergemstonesstem kitscience kitkids gift
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