what is the warranty for and how long is it?

I don’t think there is a warranty for it. However, if it’s defective call the company. They seem to be really good at doing the right thing

Can you confirm the voltage rating of the power cord? only 110v or up to 240v? thank you.

The power supply will work with 100-240v. It has a US plug.

Mine didn't come with an instruction booklet. Where can i find one online or request one?

Contact Amazon or the Seller about getting a booklet. As for online guidance, doing a quick google search on how to use a rock tumbler will help. You can also put your tumbler info into youtube and see someone setting it up and using it. A quick search of Amazon shows several books on rock tumbling as well as gemstone/rock identification.

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Advanced Professional Rock Tumbler Kit - with Digital 9-day timer & 3-speed polisher settings - UK/EU Edition Turn Rough Rocks into Beautiful Gems : Great Geology Science Kit STEM Gift for all ages

Product ID: 170464190

Details

Age range (description)
Adult
Brand
Dan&Darci
Item dimensions L x W x H
32.3 x 25.4 x
Size
23 cm x 33 cm
Theme
Geology

⏳9-day digital timer precision

🪨Robust large-capacity drum

⚙️3-speed polisher control

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Description

💎 Turn your curiosity into polished perfection!

BUILT TO LAST - Durable, professional-grade drum and base designed for consistent, long-term use.
PLUG PLAY SIMPLICITY - No assembly or batteries required—just plug in and start transforming rough stones into gems.
STEM READY EXPLORATION - Perfect educational tool to ignite curiosity in geology and earth sciences for all ages.
PRECISION TIMING MASTERY - Set it and forget it with a digital 9-day timer for flawless polishing cycles.
CUSTOMIZABLE SPEED CONTROL - Three distinct speeds let you tailor the tumbling process to your rock’s unique needs.

The Advanced Professional Rock Tumbler Kit features a powerful 3-speed polisher and a digital 9-day timer, enabling users to effortlessly transform rough rocks into stunning gemstones. Designed for durability and ease of use, this STEM-focused kit requires no assembly or batteries, making it an ideal educational gift for geology enthusiasts aged 8 and up.

Specifications

ASIN	B07Q32W334
Age Range Description	Adult
Best Sellers Rank	138,353 in Toys & Games ( See Top 100 in Toys & Games ) 1,440 in Educational Science Kits
Brand Name	Dan&Darci
Country Of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (9,074)
Educational Objective	Earth sciences, hand-eye coordination, patience
Is Assembly Required	No
Item Dimensions	32.3 x 25.4 x 14.5 centimetres
Manufacturer	Dan&Darci
Manufacturer Part Number	DD-007
Material Type	Plastic, minerals, gemstones
Maximum Age Recommendation	120
Model Number	Rock Tumbler
Set Name	Rock Tumbler Kit
Size	23 cm x 33 cm x 14 cm
Theme	Geology
UPC	855831008158
Unit Count	2.1 count

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€ 163.24

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TrustScore 4.5 | 7,300+ reviews

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