For guitar 39" nylon strings, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our guitar 39" nylon strings has been well received by many customers and enjoyed a good reputation in many countries. Aileen Music guitar 39" nylon strings have characteristic design & practical performance & competitive price, for more information on the guitar 39" nylon strings, please feel free to contact us.