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 Rock Tumbler Kit – Reliable Rotary Rock Polisher for Adults, Beginners & Hobbyists, 2.5LB Quiet Rubber Barrel with 3 Speeds, 9-Day Timer & Memory Function, Full Accessories Included, Ideal Gift

Product ID: 412551126

⏳9-day programmable timer

🔇75% quieter operation

⚙️3-speed motor control

€ 145.78

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Description

💎 Polish Like a Pro, Quietly & Effortlessly!

MAXIMIZED CAPACITY - Extra-large 2.5LB barrel polishes 2.5× more rocks per batch—ideal for serious hobbyists and collectors.
SET FORGET PRECISION - 9-day programmable timer with memory function lets you walk away and return to flawless polished stones.
WHISPER QUIET TUMBLING - Soft rubber barrel reduces noise by 75%, perfect for home or apartment use without disruption.
HASSLE FREE MAINTENANCE - User-replaceable drive belt and durable design keep your hobby uninterrupted and your tumbler running longer.
COMPLETE READY TO USE KIT - Includes rocks, 4-stage grit system, ceramic media, and all accessories—start tumbling the moment you unbox.

The K1 Rock Tumbler Kit is a top-rated, quiet rotary polisher featuring a 2.5LB soft rubber barrel, 3-speed motor, and a 9-day programmable timer with memory. Trusted by thousands and ranked #1 by NBC's Today and BestReviews, it includes a complete 4-stage grit system, ceramic media, and all accessories needed to start polishing immediately. Designed for adults, beginners, and hobbyists, it offers whisper-quiet operation, easy maintenance, and a risk-free purchase backed by a 90-day money-back guarantee and 1-year warranty.

Specifications

ASIN	B09PYR2RRT
Age Range Description	13 years and up
Best Sellers Rank	#4,871 in Toys & Games ( See Top 100 in Toys & Games ) #2 in Kids' Rock Tumblers
Brand Name	KomeStone
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (3,772)
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
Is Assembly Required	No
Item Dimensions	11.22 x 9.02 x 5.71 inches
Manufacturer	KomeStone
Manufacturer Maximum Age (MONTHS)	1200.0
Manufacturer Minimum Age (MONTHS)	156.0
Manufacturer Part Number	CA-KS0107RT17
Material Type	Japanese carbon motor, Rubber, Stainless Steel, 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	1.0 Count

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€ 145.78

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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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