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BlueMarbleToys

National Geographic Hobby Rock Tumbler Kit – Durable Leak-Proof Rock Polisher with 7-Day Timer, Complete Rock Tumbling Kit with Grit, Jewelry Settings & GemFoam Polish, Educational STEM Science Kit

National Geographic Hobby Rock Tumbler Kit – Durable Leak-Proof Rock Polisher with 7-Day Timer, Complete Rock Tumbling Kit with Grit, Jewelry Settings & GemFoam Polish, Educational STEM Science Kit

$85.54 USD
$85.54 USD
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About This

  • CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This robust rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid.
  • ALL-IN-ONE TUMBLING KIT - You get 1/2 pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler grit, a strainer, and our innovative new GemFoam polishing foam.
  • USE GEMFOAM FOR DAZZLING RESULTS - This rock tumbling kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine!
  • AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!
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"Fueling Imagination, One Spark at a Time"

Our Three Core Principles:

Open-Ended Play:We nurture creative problem-solving skills through play that has no fixed "right answer," allowing imagination to take the lead.

Safe & Sustainable:We prioritize your child's wellbeing by using only natural wood, non-toxic silicone, and recycled paper—materials that are safe for their skin and gentle on the planet.

Growth-Mindset:We design educational experiences that focus on the joy of the process rather than just the final result, helping children embrace every step of their journey.

Little Sparks Studio

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Frequently Asked Questions

Yes, we provide free standard shipping on all orders over $100. For orders under $100, a small shipping fee applies, which will be shown at checkout.

If you're not completely satisfied with your purchase, you can return it within 14 for a full refund. Please ensure the item is unused and in its original packaging.

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