Is there any chance of the tumbler causing a fire if left on? For example if i went out would the tumbler be safe to leave on?

tumbler has been left on for the day when i've gone to wrok, multiple times. Never caused me an issue. Motor shouldn't generate enough heat friction to start a fire, and electrics shouldn't cause an issue because the fuse would tirp out the electrics

How loud is it? Compare to something?

The volume of noise will depend on many variable, but the decibel range will be 80-88. You can find many decibel charts online. But for comparison this is in the range of a hair drier and truck level.

can it Polish sea glass

Absolutely. We have tested various pieces of glass and it cone out looking really good.

Our Pro tumbler has a watts power output of 13 watts at max efficiency, the starter would be under this max.

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NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Includes Rough Gemstones, 4-Stage Silicon Carbide Polishing Grit, Jewellery Fastenings & Learning Guide - STEM Science Kit for Geology Enthusiasts

Product ID: 47945287

Details

Age range (description)
8 years and up
Brand
Blue Marble
Item dimensions L x W x H
27.9 x 13.2 x
Size
1 Count (Pack
Theme
Geology - Rock

💎227g rough gemstones included

🔇quiet, rubber-lined leak-proof barrel

⚙️4-stage silicon carbide polishing grit

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$187.86

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Description

💎 Polish your passion, rock your style!

CREATE PERSONALIZED JEWELRY - Craft unique necklaces, rings, and keychains with your polished stones.
COMPLETE ALL IN ONE STEM KIT - Includes gemstones, polishing grit, jewelry fastenings & a detailed learning guide.
DURABLE WHISPER QUIET OPERATION - Rubber-lined barrel and robust motor ensure long-lasting, low-noise tumbling.
EDUCATIONAL ENGAGING EXPERIENCE - Step-by-step instructions foster critical thinking and geology passion.
TRANSFORM ROUGH ROCKS INTO STUNNING GEMS - Turn raw stones into polished treasures with ease and precision.

The NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit offers 227g of rough gemstones and a 4-stage silicon carbide grit system to transform raw stones into polished gems. Featuring a durable, quiet, rubber-lined barrel and a powerful motor, this all-in-one STEM kit includes jewelry fastenings and a full-color learning guide, making it perfect for geology enthusiasts aged 8 and up who want a hands-on educational experience with lasting creative results.

Specifications

ASIN	B01I56RV0C
Age Range Description	8 years and up
Best Sellers Rank	34,464 in Toys & Games ( See Top 100 in Toys & Games ) 234 in Glassware Tumblers 308 in Model Building Accessories, Hardware & Tools 408 in Educational Science Kits
Brand Name	Blue Marble
Country Of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (10,752)
Educational Objective	Critical Thinking, Sorting Skill
Global Trade Identification Number	00816448020391
Included Components	rock tumbler, grit, gemstones, jewelry fastenings, sifter, learning guide
Is Assembly Required	No
Item Dimensions	27.9 x 13.2 x 30.5 centimetres
Item Type Name	Fastenings & Detailed Learning Guide - Great Stem Science Kit For Mineralogy & Geology Enthusiasts
Item Weight	1.9 Kilograms
Manufacturer	JMW Sales, Inc.
Manufacturer Part Number	NGTUMBLER2
Manufacturer Warranty Description	1 Year Warranty
Material Type	Metal, Rubber Lined Barrel
Maximum Age Recommendation	1188.0
Minimum Age Recommendation	96.00
Model Number	NGTUMBLER2
Set Name	Necklace, Key chain, Ring, Two clip-on earring fastenings
Size	1 Count (Pack of 1)
Sub Brand	National Geographic
Theme	Geology - Rock Polishing
UPC	816448020391
Unit Count	1.0 count

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$187.86

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In stock

Sold byAmazon USADelivered 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 USA.

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