Replacement belts. How do I order?

Hi, here is the link for the belts: https://www.amazon.com/dp/B09S67HKV5/ Or just search KomeStone rock tumbler belts at amazon.com, then you'll find the belts. You are also welcome to follow our brand store on amazon.com through this link: https://www.amazon.com/stores/RockTumblerKit/page/98CD222F-C7A7-4372-80AE-0F0370A463C5 you'll find all accessaries related to our rock tumbelrs. If you want to contact our customer service, just email us via: support@komestone.com, we'll get back to you very soon!

Will the starter kit include all 9 kinds of stones or are there just some random rocks?

This rock tumbler kit includs 9 kinds of stones as advertised, weights around 1lb.

Can I tumble rocks we find at the park or do they have to be these special rocks?

You can tumble any rocks you’d like, I suggest you get a rock identification app, plus a hardness chart. The rocks you tumble need to be the same hardness or the softer rocks will disappear… this is a lot of fun and the outcome is beautiful

Can this tumbler be used to polish metal washers?

Based on two factors, yes it can. #1 The washer must be a metal that could be polished in a conventional method, such as a buffing machine. #2 That you are using a powder made for polishing. I will add that I do not recommend polishing metal items in a tumbler,

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K1 Quiet Rock Tumbler Kit for Adults, Kids & Families | Reliable 2.5Lb Rotary Rock Polisher, Thick Rubber Barrel, 3 Speeds, 9-Day Timer, Memory Function, Complete Gem Polishing Kit

Product ID: 412551126

🔇75% quieter rubber barrel

⏲️9-day programmable timer

⚙️2.5 lb capacity barrel

$219.03

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Description

💎 Polish Like a Pro, Quietly & Confidently

WHISPER QUIET OPERATION - Enjoy up to 75% noise reduction for peaceful polishing anywhere—living room friendly.
MAXIMIZE YOUR BATCH SIZE - 2.5 lb thick rubber barrel polishes 2.5× more stones per run than standard kits.
ALL INCLUSIVE STARTER KIT - Comes with rough stones, polishing grits, ceramic media, jewelry findings, and full-color guide—start polishing day one.
BUILT TO LAST SUPPORTIVE - Replaceable parts and US-based support ensure your tumbler stays a lifelong hobby companion.
SMART HASSLE FREE CONTROLS - 3 speeds, pause/resume, and memory function with a 9-day timer keep your workflow seamless.

The KomeStone K1 Quiet Rock Tumbler Kit is a top-rated, 2.5 lb capacity rotary polisher featuring a thick rubber barrel that reduces noise by 75%. It offers smart digital controls with a 9-day timer and memory function, making it ideal for adults, kids, and hobbyists. The complete kit includes rough stones, polishing grits, ceramic media, and jewelry findings, supported by replaceable parts and US-based customer service for long-term use.

Specifications

ASIN	B09PYR2RRT
Age Range Description	13 years and up
Best Sellers Rank	#7,821 in Toys & Games ( See Top 100 in Toys & Games ) #3 in Kids' Rock Tumblers
Brand Name	KomeStone
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (3,823)
Educational Objective	Teaching geology, creative design, patience
Included Components	1 pound of rocks & 4 bages of polishing grits & ceramic pellets, 1 rock tumbler base & 1 rubber barrel, 2 PU belts & user instructions, jewelry fastenings & adaptor & screwdriver & mesh strainer
Indoor Outdoor Usage	Indoor
Item Dimensions	11.22 x 9.02 x 5.71 inches
Manufacturer	KomeStone
Manufacturer Maximum Age (MONTHS)	1200
Manufacturer Minimum Age (MONTHS)	156
Manufacturer Part Number	CA-KS0107RT17
Material Type	Japanese carbon motor, Top quality of stainless steel, Tyre grade rubber, 𝐂𝐏𝐒𝐈𝐀 & 𝐂𝐏𝐂 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝
Model Number	K1
Number of Players	1
Operation Mode	Manual
Power Source	AC adapter
Set Name	KomeStone K1 Professional Large 2.5LB Capacity Edition
Size	Large
Supported Battery Types	No batteries required
Theme	Lapidary Tool for DIY Jewelry & Crafts, Perfect gift choice for the families or friends, Rock Tumbler Kit for Polishing Stones, Rock Tumbler Starter Kit with Timer & Motor, Rock Tumbler with Grits and Accessories, Stone Polishing Machine for Kids & Adults
Unit Count	1 Count

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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.

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$219.03

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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Customer service was outstanding when I had questions about the product.

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