Attune Aid is a non toxic non staining synthetic lubricant blended with PTFE powder.  PTFE has the lowest amount of friction against any solid surface. Applying a small amount to all points the string has contact can greatly reduce or eliminate string breaks and increase tuning stability.  Attune Aid works great on your tuning gears and is also a dielectric.

Attune Aid is truly universal and in a league of its own.

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