EJ44 Pro-Arte' Extra Hard Tension Classical Guitar Strings EJ44 Pro-Arte' Extra Hard Tension Classical Guitar Strings give you a firmer response and dazzling clarity. EJ44's deliver more string energy to the soundboard of the instrument, for superior volume and projection. They work marvelously on acoustic electric nylon string guitars, and have a bright and crisp tone. You get immediate response and clear tone with every note, almost like steel strings, only softer and fuller. Perfect for Jazz, on nylon acoustic electric guitars Joyce Cooling playes D'Addario Extra Hard Tension strings on her Frameswork Modern Classic guitar. Diameters: .029 .0333 .0416 .030 .036 .045 EJ44 Extra Hard Tension nylon strings are the product of a sophisticated manufacturing process, in which all Pro-Arte' treble strings are laser sorted for correct and consistent diameters, tensions, and other properties and quality control checks. For the wound strings, silver plated copper windings are applied over multi-filament nylon cores by computer controlled winding machines, which ensure uniform winding tension and speed. The result is a precisely made and sounding classical string set, that delivers the response, projection and tone you demand. Available for Order