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$139.99
FREE delivery: Monday, 7 Feb
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit

4.1 out of 5 stars 919 ratings
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Amazon's Choice for "national geographic hobby rock tumbler kit"

$139.99
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Hobby Kit 2

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Material Default_no_selection_value
Brand National Geographic
Item dimensions L x W x H 35.2 x 12.8 x 20.7 centimetres

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  • CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This robust rock tumbler 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 tumbling time control settings so you can set it and forget it. The leak-proof barrel features a stainless-steel lid and is 75% quieter overall than plastic tumbler barrels.
  • ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get 227 grams of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler grit, a strainer, and our innovative new GemFoam rock polisher.
  • USE GEMFOAM FOR DAZZLING RESULTS - This rock tumbler 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!
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you

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Buy it with

  • NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New
  • +
  • NATIONAL GEOGRAPHIC Break Open 10 Premium Geodes – Includes Goggles, Detailed Learning Guide and 2 Display Stands - Great STE
  • +
  • NATIONAL GEOGRAPHIC Rocks & Fossils Kit – 200+ Piece Set Includes Geodes, Real Fossils, Rose Quartz, Jasper, Aventurine & Man
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Product Description

Turn rough rocks into amazing gemstones with the Hobby Rock Tumbler from National Geographic! This kit has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewellery.

Contents and Features:

  • Power-saving automatic shutoff timer
  • Reliable, long-lasting motor
  • Leak-proof tumbler barrel
  • Noise-reduced operation (75% quieter than plastic barrels)
  • Plenty of stones (227 g) and four levels of grit
  • Jewellery fastenings so you can create your own unique jewelry
  • GemFoam, the most innovative way to add dazzling shine to your polished stones!

This high-quality tumbler allows you to set your tumbling time. When the time expires, your tumbler will automatically shut-off, allowing you to choose the perfect amount of tumble time for each grit stage. Plus, our tumbling barrel dampens sound better than most tumblers out there. The rough rocks provided (227 g) contain nine different gemstones from around the world, and our tumbling grit is labeled by tumbling stage to make the process even easier! Choose your favorite gems and turn them into jewelry with the included necklace, key chain, ring, and two clip-on earring fastenings inside.

And don't forget about GemFoam, our exclusive new way to add dazzling shine to your polished rocks! Use GemFoam just like tumbling grit, simply add it to the barrel with your stones and water, then three days later marvel at the shine! GemFoam is reusable too, allowing you to create a truly impressive gemstone collection!

National Geographic Toys makes the highest quality hands-on science toys, and all products are backed by exceptional service.

About the National Geographic Society: With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.

Important information

Safety Information:

Not suitable for children under 8 years. For use under adult supervision.


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4.1 out of 5 stars
4.1 out of 5
919 global ratings

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Top review from Australia

Reviewed in Australia on 1 January 2022
Style Name: Hobby Kit 2Verified Purchase

Top reviews from other countries

Amazon Customer
1.0 out of 5 stars Read the reviews before buying.
Reviewed in Canada on 22 March 2021
Style Name: Hobby Kit 2Verified Purchase
37 people found this helpful
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Markus Harvey
1.0 out of 5 stars Died in less than a month
Reviewed in Canada on 30 December 2020
Style Name: Hobby Kit 2Verified Purchase
37 people found this helpful
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John Deason
5.0 out of 5 stars Ease of use.
Reviewed in the United Kingdom on 14 March 2021
Style Name: Hobby Kit 2Verified Purchase
8 people found this helpful
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Angela McFarlane
1.0 out of 5 stars Totally unacceptable noise.
Reviewed in the United Kingdom on 31 December 2020
Style Name: Hobby Kit 2Verified Purchase
8 people found this helpful
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Zoe
5.0 out of 5 stars Amazing!
Reviewed in the United Kingdom on 1 July 2021
Style Name: Hobby Kit 2Verified Purchase
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5.0 out of 5 stars Amazing!
Reviewed in the United Kingdom on 1 July 2021
I'm new to rock tumbling, only been using this for a week or so but I am amazed of how these dull rocks can turn into beautiful vibrant crystals/gems by time. Love this lil machine already! Easy set up, right size, great quality. ( I also cushion mine because it can be pretty loud )
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6 people found this helpful
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