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The Geyer Rim.... line specifications:
- .650" (16.5mm) in diameter at the joint where the cup and rim meet
- inch threads are .750-36 threads, compatible with almost all American-made screw rim mouthpieces
- metric rims are 17.5mm at the joint where the cup and rim meet
- metric threads are .800-36, designed specifically to be interchangeable with Osmun, Paxman and Halstead-Chidell mouthpiece rims and are offered in sizes larger than the inch models.
- multiple shank choices to fit your horn perfectly.
- three finishes to choose from