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.

Desertcart Logo

Deliver to Paraguay

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

💎 Turn Rough Rocks into Coveted Gems—Because Your Desk Deserves a Little Bling!

NEXT LEVEL SHINE - Innovative reusable GemFoam polishing foam delivers a professional-grade sparkle that turns heads.
STEM MEETS STYLE - Educational geology and creative thinking kit that’s perfect for curious minds and trendsetters alike.
LEAK PROOF LUXURY - Stainless steel lid and improved barrel design ensure zero mess, zero stress—just pure tumbling fun.
ALL IN ONE GEM LAB - Includes 1 lb of rough rocks with 9 gemstone varieties, tumbler grit, strainer, jewelry fastenings, and exclusive GemFoam polish.
SET IT FORGET IT - Durable motor with customizable time and speed settings lets you multitask while your gems get perfected.

The Blue Marble NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit is a complete, durable rock tumbling system featuring adjustable time and speed controls, a leak-proof stainless steel barrel, and an exclusive GemFoam polishing foam. This all-in-one STEM kit includes one pound of rough rocks with nine gemstone types, tumbler grit, a strainer, and jewelry fastenings, making it perfect for both educational and creative pursuits.

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

₲1677062

Duties & taxes incl.

Paraguaystore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews

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
Number of Game Players	1
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

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

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions