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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Dan&Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Geology Toy for Kids All Ages

Dan&Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Geology Toy for Kids All Ages

Product ID: 118232511

⏳9-day digital timer

🔇low-noise leak-resistant barrel

⚙️3-speed precision control

$206.56

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Description

💎 Turn rough rocks into polished gems—and your STEM cred up a notch!

SET IT AND FORGET IT - Advanced 9-day digital timer ensures perfect polish without constant monitoring.
WHISPER QUIET OPERATION - Enjoy a peaceful workspace with a leak-resistant, ultra-quiet barrel design.
COMPLETE STEM EXPERIENCE - Includes everything from rough stones to jewelry fasteners—perfect for hands-on learning and creativity.
TIMELESS GIFT FOR ALL AGES - Engage kids and adults alike with a fun, educational geology project that sparks curiosity and pride.
PRECISION POLISHING CONTROL - Customize your tumbling with 3 speed settings for flawless gem finishes every time.

The Dan&Darci Advanced Professional Rock Tumbler Kit is a comprehensive STEM tool featuring a powerful motor, 3-speed settings, and a 9-day digital timer. Its low-noise, leak-resistant barrel and complete accessory set make it ideal for all ages to transform rough stones into beautiful polished gems while fostering a love for geology and science.

Specifications

ASIN	B07Q32W334
Age Range Description	Kid, Adult
Best Sellers Rank	#39,643 in Toys & Games ( See Top 100 in Toys & Games ) #18 in Kids' Rock Tumblers
Brand Name	Dan&Darci
Customer Reviews	4.5 4.5 out of 5 stars (9,543)
Educational Objective	STEM
Included Components	Instruction Booklet + Learning Guide, Jewelry Fasteners, Mesh Strainer, Power Cord, Spare Motor Belt, Rock Tumbler, 0.5 lb Assorted Rough Stones,4 Grit Packets
Is Assembly Required	No
Item Dimensions	12.7 x 10 x 5.7 inches
Manufacturer	Dan&Darci
Manufacturer Maximum Age (MONTHS)	1296.0
Manufacturer Minimum Age (MONTHS)	96.0
Manufacturer Part Number	DD-007
Material Type	Metal
Model Number	Rock Tumbler
Size	23 cm x 33 cm x 14 cm
Theme	Geology
UPC	855831008158
Unit Count	1 Count

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$206.56

Duties & taxes included

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.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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