D'Addario EJ43 Pro-Arte Nylon Classical Guitar Strings, Light TensionD'Addario Pro-Arte StringsD'Addario Pro-Arte Classical Guitar StringsThe Pro-Arte series are a worldwide best-selling nylon string set for classical guitar. Combining high quality materials with the unparalleled manufacturing consistency of D'Addario, Pro-Arte strings provide every player with the balanced performance they are seeking.Detailed DesignNylon strings require a whole different level of quality inspection to assure that each set and each string is made with precision. With this in mind, each nylon treble within a Pro-Arte set is laser measured to calculate diameter and tension levels to deliver pure intonation and tonality every time.Core ElementsThe other unique aspect of the Pro-Arte construction is the use of a silverplated copper winding on a proprietary multi-filament nylon core to create the basses. The use of the multi-filament core allows the Pro-Arte basses to blend warmth and projection perfectly into one set.Pro-Arte FeaturesLaser measured clear nylon treble strings for consistent, precise intonationPrecision wound basses for warm, projecting tone and the utmost consistencyMade in the U.S.A. for the highest quality and performanceAvailable in an EXP coated option for 4 times the life span per setAvailable in a Composite option for greater projectionAvailable in a Dynacore option for greater flexibility and responsivenessAvailable in a Lightly Polished option for reduced finger noise