Thomastik-Infeld
用上平滑的鎳金屬加上Flatwound 纏繞方法 (不是 “Ground wound” 或 “compressed wound”) 。
能造出傳統Jazz 風格的平均，醇厚飽滿的音色。
用上一段時間後，弦線的音色會更柔和，更有力。

弦徑:
JS111 - .011 .015 .019 .025 .035 .047
JS112 - .012 .016 .020 .027 .037 .050
 
Flat wound jazz guitar string! A true flatwound (not “ground wound” or “compressed wound”) with glassy smooth polished nickel winding on a round core, it has the perfect balance of fundamental to overtones required for traditional jazz. 
its mellow, powerful tones actually improve with age!
 
Gauge:
JS111 - .011 .015 .019 .025 .035 .047
JS112 - .012 .016 .020 .027 .037 .050