The legendary Silver-Special professional strings for classical guitars;Nickel free according to DIN EN 1811, complies with REACH regulation (EC) Nr. 1907/2006;Treble strings precision round;Bass-strings with high silver plating;Surface treatment of the tension wire (coated, tarnish-proof);Strings for small instrument sizes in MT and HT available on request;Made in Germany;High Tension ;E-1: 7,5kg/16.53lbs;H/B-2: 6,2kg/13.67lbs;G-3: 6,7kg/14.77lbs;D-4: 7,8kg/17.2lbs;A-5: 7,6kg/16.76lbs;E-6: 7,8kg/17.2lbs;