We have made innovations in winding techniques of nylon strings and now we are ready to roll. The most important novelty is controlled pretension of the multifilament core before winding. This makes possible that wound string stretches less on guitar and is playable for a much longer time. We can also adjust the sound of the strings with more or less pretension.In our FINNCORDE CLASSICAL nylon strings the winding materials are silverplated copper wire wound on nylon multifilament core and the plain nylon strings are hard clear nylon. We have two categories of string sets: "high tension" and "medium tension". In our package there are more detailed technical data of the strings.