CB Range discussion

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i'm not sure where you're located, but here in the states I'd suggest checking out They have what seems to be the best prices and shipping rates around. MM's sweetpea rachel

also carries them. They mention that the rings can be swapped between the CB2K, CB3K, and Curve models. The website might take a bit of getting used to, but if you navigate it like you're purchasing a CB3K directly, you'll find the page for ordering individual rings.