The legendary Silver-Special professional strings for classical guitars;Nickel free according to DIN EN 1811, the REACH regulation complies with (EC) Nr. 1907/2006;Treble strings precision round;Bass-strings with high silver plating;Surface treatment of the tension wire (coated, tarnish-proof);Made in Germany;Super low Tension;E-1: 7,0kg/15.43lbs;H/B-2: 6,0kg/13.23lbs;G-3: 6,5kg/14.33lbs;D-4: 6,5kg/14.33s;A-5: 6,7kg/14.77bs;E-6: 6,5kg/14.33lbs;