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;Medium Tension;E-1: 7,3kg/16.09lbs;H/B-2: 6,2kg/13.67lbs;G-3: 6,2kg/13.67lbs;D-4: 7,3kg/16.09bs;A-5: 7,2kg/15.87lbs;E-6: 7,1kg/15.65lbs;