Hello. The machine that turns the tumbler has suddenly stopped working - this happened after one day putting the 3rd grit and setting the tumbler to

Hello, I can't view your entire question. Could you please rewrite it?

Is it battery operated?

No, it plugs into an electrical outlet.

What power and plug type is this? 240v? 50hz?

Hello. The product is American made. The plug is a type of receipt used by the US state. You can use the plug converter to use. Our customers who buy the product use it this way. Thank you

The machine has suddenly stopped turning after placing the tumbler with the 3rd grit. The numbers 1-7 on the machine just keep flashing. Why?

hello sir,please contact the store where you received the product. I don't understand the problem

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💎 Polish Your Passion, Wear Your Story

STEM LEARNING MEETS HANDS ON FUN - Comes with an engaging guide packed with fascinating gemstone facts to fuel curiosity and creativity.
CURATE YOUR OWN SIGNATURE JEWELRY - Includes necklace, earrings, keychain, and ring fastenings to showcase your polished creations.
EXPLORE 9 RARE GEMSTONE VARIETIES - From Tiger’s Eye to Dalmatian Jasper, each stone offers a unique story and stunning color palette.
NO BATTERIES JUST PURE CRAFTING JOY - Eco-friendly, mess-free, and perfect for ages 8+, making it a timeless educational experience.
TRANSFORM ROUGH ROCKS INTO DAZZLING GEMS - Master the art of gemstone polishing with four precision grit grades for a flawless finish.

The National Geographic Rock Tumbler Mega Refill Kit offers 3 pounds of nine distinct gemstones and a four-stage grit system to transform rough stones into polished gems. Complete with jewelry fastenings and an educational guide, this STEM-focused kit empowers users aged 8+ to craft personalized jewelry while learning about geology and gemology.

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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.

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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.

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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.

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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.

₨27490

Duties & taxes incl.

Sri Lankastore

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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Product Dimensions	13.65 x 13.5 x 13.81 cm; 1.36 kg
Manufacturer recommended age	8 years and up
Item model number	NGGEMREFILLMEGA
Educational Objective(s)	STEM
Language:	English
Number of Puzzle Pieces	9
Assembly Required	No
Scale	1/32
Batteries Required?	No
Batteries Included?	No
tech_spec_battery_description_toys	No batteries required
Material Type(s)	Stone
Remote Control Included?	No
Color	Multicolor
Release date	10 September 2018
Language	English
ASIN	B07H7WFWYT

National Geographic Rock Tumbler Mega Refill Kit - 3lbs

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