| Educational objective(s) | STEM, Concept Development Skills, Hand-Eye Coordination, Critical Thinking, Reasoning Exploratory Skills |
|---|---|
| Language: | English |
| Model Number | NGTUMBLER3LB |
| Assembly Required | No |
| Batteries Required? | Yes |
| Batteries Included? | No |
| Material type(s) | Multiple |
| Remote control included? | No |
| Remote Control Type | None - Not Applicable |
| Colour | Multicolor |
| Release date | July 5 2023 |
| Manufacturer recommended age | 8 years and up |
| Item model number | NGTUMBLER3LB |
| Product Dimensions | 32.4 x 26.2 x 17 cm; 3.7 kg |
| ASIN | B08DL95CWL |
NATIONAL GEOGRAPHIC Rock Tumbler Kit - 1.36 kg Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Includes Rocks for Tumbling & Rock Polisher Grit, Rock Tumbler Kit for Adults and Kids
Purchase options and add-ons
| Size | One Size |
| Brand | Blue Marble |
| Theme | Geology |
| Age range (description) | 8 years and up |
| Item dimensions L x W x H | 32.4 x 26.2 x 17 Centimetres |
| Item weight | 3.7 Kilograms |
| Educational objective | STEM, Concept Development Skills, Hand-Eye Coordination, Critical Thinking, Reasoning Exploratory Skills See more |
| Sub brand | National Geographic |
| Manufacturer maximum age | 1188.0 |
| Assembly required | No |
About this item
- CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This professional 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 time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid is 75% quieter overall than plastic tumbler barrels.
- ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get 1361 grams of rough rocks with nine different types of gemstones inside, five jewelry fastenings, 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!
- HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!
Frequently bought together

Explore more from across the store
National Geographic Rock Tumbler Refill – Grit & Polish Media for Up to 9 kg of Stones, Compatible with All Tumblers, Rock Polishing SuppliesFREE ShippingGet it Mar 9 - 11Only 5 left in stock.
From the brand
-
New Products & 鶹
-
Rock Tumblers & Accessories
-
World-Class Science Kits
-
Geodes, Gems & Crystals
-
Dig Kits
-
Arts & Crafts Kits
-
Marble Runs
-
Outdoor Toys
-
Your purchase has purpose!
Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.
Product Description
National Geographic Professional Rock Tumbler with 1.36 Kilogram Capacity
This professional rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its 1.36-kg capacity, simple operation, and durable design. Also includes 1.36 kg of rocks to tumble, 5 jewellery fastenings, grit, strainer, and our innovative GemFoam polisher.
Take your tumbling seriously with this 1.36 kilogram capacity pro tumbling kit!
This professional rock tumbler kit from National Geographic has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewellery.
Features include a 1.36-kilogram capacity barrel; automatic shutoff timer; reliable, long-lasting motor; leak-proof tumbler barrel; and noise-reduced operation (75% quieter than plastic barrels).
This kit also includes plenty of stones (1.36 kg), four levels of grit, 5 jewellery fastenings, and our innovative GemFoam to add dazzling shine to your polished stones!
This high-quality tumbler allows you to set your speed and 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 redesigned tumbling barrel dampens sound better than most tumblers out there. The rough rocks provided (1.36 kg) 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 jewellery 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.
We make the highest quality hands-on science toys, and all products are backed by exceptional service. 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.
Product information
Technical Details
Additional Information
| Customer Reviews |
4.4 out of 5 stars |
|---|---|
| 鶹 Rank |
|
| Date First Available | July 24 2020 |
| Manufacturer | JMW Sales, Inc. |
| Place of Business | Ashland, OR 97520,US |
Feedback
Product details
- Is discontinued by manufacturer : No
- Product Dimensions : 32.4 x 26.2 x 17 cm; 3.7 kg
- Release date : July 5 2023
- Mfg Recommended age : 8 - 99 years
- Item model number : NGTUMBLER3LB
- ASIN : B08DL95CWL
- Customer Reviews:
WARNING:
Important information
Safety Information
No Warning Applicable
Directions
Instructions for use: Stone polishing is a popular hobby for children and adults! This professional polishing barrel turns rough stones into vibrant gems thanks to its simple operation and sturdy design. The powerful motor features time and speed settings for unattended polishing. The improved drum, leak-proof and with a stainless steel lid, is 75% quieter than plastic drums. Everything is included, and more! 1.35kg of rough stones with 9 types of gems, 5 jewelry attachments, abrasives, colander, and our innovative reusable GemFoam for brilliant polishing. Use GemFoam for a brilliant result! Add GemFoam and water to the drum after the final polishing step, and admire the incredible sparkle of your stones. Reusable too!







