What is the power consumption of this unit over a week of continuous use? (in usa on 110v). thank you.

This takes .3 Amps, so (watts = amps x volts) OR watts = .3 x 110 which equals33 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.

What the difference between this and the starter kit?

There are two main differences:The Hobby Rock Tumbler has a rubber tumbling barrel with a stainless steel cap, which reduces noise and is more durable. The Starter Kit Rock Tumbler has a plastic barrel. The Hobby Rock Tumbler also has a keypad for setting the number of days you would like it to tumble, where as the Starter Kit Rock Tumbler's setting options are on/off. Thank you for your inquiry.

What pound tumbler is this product?

Dearest National Geographic.... why would you only send 1# of rocks with a two pound tumbler?

Can i buy extra grit without the rocks. we have many rocks from "mining" gemstones that i would love to polish. what do you recommend?

I recommend you follow the rock tumbler hobbiest MIchigan Rocks on Youtube. He's a good wealth of information for anyone getting into rock tumblers. He and other's mention that the polish from National Geographic is not good. I would go with rock tumbler polish offered by Polly Plastics.

National Geographic Hobby Rock Tumbler Kit For Kids And Adults

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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775.10 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

💎 Polish your passion, rock your world!

WHISPER QUIET OPERATION - Enjoy a 75% noise reduction thanks to the leakproof rubber barrel—perfect for home or classroom.
COMPLETE STEM EXPERIENCE - Includes everything from rough stones to polishing grits and a full-color learning guide for hands-on science fun.
BUILT TO INSPIRE FOR YEARS - High-quality motor and durable design ensure endless creative exploration without interruption.
EFFORTLESS GEMSTONE CREATION - Transform ordinary rocks into dazzling gems with simple one-touch controls.
AWARD WINNING EDUCATIONAL FUN - From the Toy Association’s Toy of the Year winner, fostering creativity and STEM skills for ages 8+.

The National Geographic Hobby Rock Tumbler Kit is a premium STEM activity designed for kids and adults 8+, featuring a durable motor, a leakproof and 75% quieter barrel, and a complete set including 9 real rough gemstones and 4 polishing grits. This award-winning kit offers an easy, educational, and fun way to turn everyday rocks into sparkling gemstones with one-touch operation and a detailed learning guide.

Specifications

ASIN	B01LQCIL88
Age Range Description	8 years and up
Best Sellers Rank	#1,845 in Toys & Games ( See Top 100 in Toys & Games ) #1 in Kids' Rock Tumblers
Brand Name	Blue Marble
Customer Reviews	4.5 4.5 out of 5 stars (25,921)
Educational Objective	STEM
Global Trade Identification Number	00816448020421
Included Components	Complete Rock Tumbling Kit
Item Dimensions	13.81 x 4.88 x 8.06 inches
Item Highlight	Rough Gemstones, 4 Polishing Grits, Rock Polisher, Geology Science Kit, Rock Tumbling for Kids and Adults, Birthday Gift
Item Type Name	Rock Tumbler Kit – Hobby Edition
Item Weight	5.1 pounds
Manufacturer	JMW Sales, Inc
Manufacturer Part Number	NGHOBBYTUMBLER
Manufacturer Warranty Description	No Warranty
Manufacturer recommended age	8 years and up
Material Type	Plastic
Model Number	NGHOBBYTUMBLER
Number of Items	1
Number of Packs	1
Set Name	Hobby
Size	One Size
Sub Brand	National Geographic
Theme	Rock Tumbling
UPC	816448020421
Unit Count	1 Count

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775.10 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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National Geographic Hobby Rock Tumbler Kit for Kids and Adults Ages 8+

Description

Specifications

Common Questions