Classical guitar strings developed for professional guitar players;Bass strings with LONGLIFE silver alloy wound;Treble strings from TITANYL (titan+nylon mix), slightly grey coloured;Made in Germany;High Tension;E-1: 7,6kg/16.53lbs;H/B-2: 6,5kg/14.33lbs;G-3: 6,7kg/14.77lbs;D-4: 7,8kg/17.2lbs;A-5: 7,7kg/16.98lbs;E-6: 7,8kg/17.2lbs;