Prince Problend With Duraflex 16G Natural [Misc.] Gauge: 16 / 1.30mm (for both strings) Composition Main Strings: Kevlar, Composition Cross Strings: Solid Core Synthetic Gut w/Duraflex Length Kevlar Main Strings: 22ft/6.7m, Length Synthetic Gut Cross: 20ft/6.1m Colors: Gold