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🔧 Keep your rock tumbler rolling—durability that won’t quit!
This 5-pack of KomeStone PU replacement belts is specifically designed for K1 & K1 Pro rock tumblers, featuring upgraded durable, heat-resistant PU material with an anti-break design. Officially certified by KomeStone, these belts ensure optimal performance and come with a lifetime free replacement guarantee, making them the ultimate choice for serious tumbling enthusiasts.












| ASIN | B09S67HKV5 |
| Best Sellers Rank | #38,784 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #38 in Tumbling Media |
| Customer Reviews | 4.3 4.3 out of 5 stars (303) |
| Item Weight | 0.352 ounces |
| Item model number | KS0107RT05 |
| Manufacturer | KomeStone |
| Manufacturer recommended age | 4 years and up |
| Product Dimensions | 3.07 x 0.16 x 0.04 inches |
J**N
Strong belt, durable
These are great replacements for the original rubber belts that ship with this unit. They work good and great value. We'll soon discover their longevity level. Not to take anything away from this vendor (units are exceptionally well built) but I have discovered that a pack of Goody Hair bands that you can find at any Walmart also work very well and come 30 to a card. I think they were under 5 bucks. Elastic and did very well on a trial test on Stage 1 tumble for over a week. I'm a tinkerer and will one day replace the belt drive with a chain sprocket and then no more belts to worry about breaking, ever. Wonder if KomeStone will come out with a direct drive unit one day?
G**T
Replacement belts
Much better than ones received with the tumbler so far, time will tell
M**N
better belts than previously
These replacement belts are better than the last ones. I've been tumbling more than 2 weeks and the belt is still in place
E**D
They are rugged
I really didn’t know what to expect when I ordered these. The ones that came with the rock tumbler didn’t last 24 hours each. These are lasting 2 weeks. I will continue to use these for my tumbler
K**E
Just what you need
Rubber belts for your tumbler break - no matter what you do. These replacement belts have worked very well for me. Some have lasted for close to a month with my Komestone tumbler before breaking. You can't tumble without belts - I always make sure that I have some on hand. I'd definitely recommend these and will be sure to purchase more in the future.
S**C
Don't hold up. Break after one use
These are the correct tumbler replacement belts for my rock tumbler. I have them a 3 star because they break after each use. So disappointing.
E**5
Works Great!
Works great for my rock tumbler. Only used it twice to tumble rocks so not sure the longevity of it yet.
T**O
Okay at best
I wouldn't call it "Anti break" at best it lasts 2-3 weeks.
J**M
Lasts longer than the ones that come with the machine.
B**N
They last a lot longer than the rubbish ones supplied with the tumbler.
M**E
These were perfect -customer service helped me find them and they are the exact fit for my rotary tumbler.
A**S
it took some time to be delivered, but the belt is holding up well. There are 2 different type of belts in this pack, so it must be the good ones that are so much better than the ones that came with the tumbler.
J**E
Wrong size advertised ,DOES NOT FIT ROCK TUMBLER
Trustpilot
2 weeks ago
1 month ago