815er Professional strings for 8- or 10-string classical guitar;New: string length 110 cm;Nickel-free according to DIN EN 1811, complies with REACH regulation (EG) Nr. 1907/2006;Sets and single strings available in 2 different tension (MT or HT);Treble strings precision round;Bass strings silver-plated (high);Surface treatment of wounding wire (coated, tarnish-protected);Made in Germany;Medium Tension ;E-1: 7,0kg/15.43lbs;H/B-2: 6,0kg/13.23lbs;G-3: 6,5kg/14.33lbs;D-4: 7,5kg/16.53bs;A-5: 7,3kg/16.09lbs;E-6: 7,5kg/16.53bs;D-7: 7,0kg/15.43lbs;C-8: 7,3kg/16.09lbs;H/B-9: 7,0kg/15.43lbs;A-10: 7,5kg/16.53lbs;