An ultra-fine layer of EXP Coating is bonded to the silverplated copper wrap wire which is then wound onto a multi-filament core. The result is a built-in barrier against the corrosion and wear that can quickly sap the life out of your strings and your sound. EXP coated silverplated copper classical strings have a natural round wound feel and sound fresh and bright with a "new string tone" that lasts three to four times longer than traditional guitar strings.
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