Tennis strings may seem simple but, as we all know, looks can be misleading. Gosen makes strings from start to finish: processing raw material, extruding, spinning, dyeing and coating. They call their system "Total Technology" and it's definitely unique. Gosen controls every aspect of making their strings, ensuring the superior quality of each and every string. Gosen strings represent a great value, whether you're looking for a synthetic gut, a performance multifilament, or a durable polyester; when you choose Gosen you're choosing one of the best.