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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, Stone Polisher for Adults & Kids

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, Stone Polisher for Adults & Kids

Q: How much power does this tumbler use per hour? Ive looked through the information but cant find the Kw anywhere listed

I can speak for the UK but in the US the cost to run one of our tumblers for say a 24-hour period would cost less than $.36-90 cents a week max depending on their per kWh rates. These take .3 Amps, so (watts = amps x volts) OR watts = .3 x 110 which equals 33 watts. Now for one week would equal 33 watts x 7 days x 24 hours = 5544 watts or 5.54 kilowatts for one week. At $.16 per kilowatt it comes to $.89 per week.

Q: Is this mains powered as it says batteries required in comparison with others

Yes it’s powered from the mains. My son is delighted with ours.

Q: Will it work with 220v eu electricity?

Yes we use it in the UK with a 220v 50Hz power supply which is universal in Europe.

Q: what are the dimensions of just the barrel please

Our National Geographic 3 pound barrel is 6 1/2" X 3 3/4"

Product ID: 381792985

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Details

Size
Large
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

🪨1.36 kg extra-large barrel capacity

⏲️9-day programmable timer for set & forget

⚙️3-speed motor for precision control

Frequently Bought Together

National Geographic Rock Tumbler Kit - 3 Lb. Extra Large Capacity Barrel with 3-Speed Motor & 9-Day Timer, Kit Includes Rocks for Tumbling and Rock Polisher Grit, Rock Tumbler for Adults and Kids

Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies

NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories

Description

💎 Turn Rough Rocks into Polished Perfection—Because Your Desk Deserves a Gem

STEM MEETS STYLE - Boost critical thinking and hand-eye coordination with a hands-on hobby that doubles as a chic conversation starter.
POLISH LIKE A PRO - 3-speed motor and leak-proof stainless steel barrel deliver salon-quality gemstone shine with minimal noise.
ECO FRIENDLY SPARKLE - Reusable GemFoam polisher ensures dazzling results without waste—shine sustainably and impress socially.
SET IT AND FORGET IT - 9-day timer lets you multitask while your gems transform—perfect for busy professionals and curious kids alike.
ALL INCLUSIVE GEM LAB - Comes with 1.36 kg of rough stones, polishing grit, GemFoam, and jewelry fastenings—everything to create your own wearable art.

The National Geographic Rock Tumbler Kit features a durable 3-speed motor and a 1.36 kg stainless steel barrel with a leak-proof lid, offering a quiet tumbling experience. Its 9-day timer allows for hands-free operation, while the all-in-one kit includes rough stones, polishing grit, reusable GemFoam, and jewelry fastenings. Designed for ages 8+, it combines STEM learning with creative craftsmanship, making it ideal for both adults and kids seeking a stylish, educational hobby.

Specifications

Product Dimensions	32.4 x 26.2 x 17 cm; 3.7 kg
Manufacturer recommended age	8 years and up
Item model number	NGTUMBLER3LB
Educational Objective(s)	STEM, Concept Development Skills, Hand-Eye Coordination, Critical Thinking, Reasoning Exploratory Skills
Language:	English
Number of Game Players	1
Assembly Required	No
Batteries Required?	Yes
Batteries included?	No
Material Type(s)	Stainless Steel
Remote Control Included?	No
Colour	Multicolor
Release date	5 July 2023
ASIN	B08DL95CWL

Have a Question? See What Others Asked

How much power does this tumbler use per hour? Ive looked through the information but cant find the Kw anywhere listed

Is this mains powered as it says batteries required in comparison with others

Will it work with 220v eu electricity?

what are the dimensions of just the barrel please

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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2488 kr

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