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August 11, 2025
These fit perfectly on my National Geographic tumbler which I bought in 2024. I have the NatGeo model with the black base with the speed and time control buttons. I was also happy with the quantity received. Unless they break within a short time, this review will stay a positive one.
James
July 7, 2025
Perfect for my tumbler. And they last a very long time well made highly recommend
DAN
June 30, 2025
Great product.
Marc H.
May 29, 2025
Anyone who tries the KomeStone tumbler knows that the belt cracks in around a day of use. I have used this belt for 11 days and still working!KomeStone are saying that they will be sourcing a better (read pricier) rubber belt. The tumbler is great! Just not the belts. No big deal. If you purchase the KomeStone, get these belts.
Killion Hardesty
May 4, 2025
I've been running one belt for about a month now, pretty continuously, and is has not shown any signs of cracking.
Mark Caballero
March 31, 2025
These rubber belts work for my K-1 Pro tumbler, but they break quickly. They seem to last only a few weeks before they crack and won't turn the tumbler drum or they just break off. If these belts lasted a month or more per belt, I would say its a good deal for the price. Just search up "4mm x 70mm O-Ring".....I just ordered 12 belts from a website for about .45 cents (actually $1 each with shipping cost) and it would have been less per O-Ring if I had ordered more. These O-Rings fit perfectly and seem much thicker than these replacement O-Rings. Just put one on today and waiting to see how long it lasts.
Customer
January 5, 2025
Haven’t tried them yet but the look good.
Kindle Customer
December 28, 2024
These appear to be thin round belts but are in fact flat belts.
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