Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit

Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit

Q: 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.

Q: 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.

Q: What pound tumbler is this product?

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

Q: 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.

Product ID: 316075421

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Details

Size
One Size
Brand
Blue Marble
Theme
Geology
Age range (description)
8 years and up
Item dimensions L x W x H
33.3 x 12.7 x

💎GemFoam polish for dazzling shine

⏱️Time & speed control motor

🛡️Leak-proof stainless steel barrel

Frequently Bought Together

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Durable Leak-Proof Rock Polisher with 7-Day Timer – Complete Rock Tumbling Kit – Geology Hobby for Kids, Educational STEM Science Kit, Rock Collection

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 stones into polished treasures — your gem journey starts here!

BUILT TO ENDURE - Durable motor and leak-proof stainless steel barrel ensure long-lasting, mess-free tumbling.
STEM MEETS STYLE - Educational geology kit that sparks creativity and scientific curiosity for all ages.
SET FORGET PRECISION - Customizable time and speed settings let you perfect your polish without hovering.
ALL IN ONE GEM CREATION - Includes 1 lb of rough rocks with 9 gemstone varieties plus grit, strainer, and jewelry fastenings.
REVOLUTIONARY GEM FOAM POLISH - Innovative reusable foam delivers a showroom-quality shine that makes your gems pop.

The Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit is a complete, durable rock tumbling system featuring a motor with adjustable time and speed controls, a leak-proof stainless steel barrel, and an all-inclusive kit with 1 lb of rough rocks containing nine gemstone types. Its patented GemFoam polishing foam ensures brilliantly shiny results, making it an ideal STEM educational tool for geology enthusiasts and creative minds alike.

Specifications

Product Dimensions	33.3 x 12.7 x 20.7 cm; 1.9 kg
Manufacturer recommended age	12 months - 3 years
Item model number	NGHOBBYTUMBLER2
Educational Objective(s)	Geology and Creative Thinking
Language:	English
Assembly Required	No
Batteries Required?	Yes
Batteries Included?	No
tech_spec_battery_description_toys	Not required (mains powered)
Material Type(s)	Cotton
Remote Control Included?	No
Color	multi
Release date	5 July 2023
Language	English
ASIN	B086Z6ZB7R

Have a Question? See What Others Asked

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

What the difference between this and the starter kit?

What pound tumbler is this product?

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?

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