Hobby Rock Tumbler by Discover with Dr. Cool

Availability: In stock

Rock Hounds: Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems. It’s easy to bring out the natural polished beauty in stones.

This high-quality science kit provides hours of fascinating fun and comes with everything kids need to start exploring the exciting hobby of rock tumbling. Just add the polishing grit, water and unpolished stones into the machine, set it and wait. Within a few weeks your patience will be rewarded with your very own gleaming, beautiful gems!

With the included jewelry fastenings, kids can even make their very own custom jewelry. Just mount the polished gems into the fastenings and they’re ready to wear!

Features & Pieces:

  • High-quality, plug-in tumbling machine with a powerful motor & spinning barrel
  • A half-pound of nine different kinds of stones - amethyst, tiger's eye, aventurine, agate, rose quartz, red jasper, dalmatian jasper, sodalite, hematite
  • Four types of polishing grit
  • Tumbling instructions & a fact-filled booklet
  • Jewelry fastenings


  • 8-15 years

This toy teaches, encourages & supports:

  • Cognitive Learning
  • Exploration & Discovery
  • Sensory Awareness
  • Relaxation & Fun

Specific Benefits:

  • Sparks a love of geology
  • Provides hands-on learning
  • Encourages creative expression

Warning: Choking hazard. Small pieces are not suitable for children under three years of age.

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