Gauges 10-14-23-30-39-47.Martin Cryogenic strings are produced to the same high-quality standards as other Martin strings. An additional step in the manufacturing process exposes the strings to extremely low temperatures (-300° F), a process used in high-tech industrial applications where consistent hardness of metal materials is required. Many musicians feel that this process extends string life and enhances the tone of the strings. 80/20 bronze wound.

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