Solid steel core with brilliant sound and high sturdyness. Chrome wound. Solo tuning. 4/4 size up to scale 1100mm (43.3"). medium tension. A: 35.0kg/77.1lbs. E: 34.5kg/76.1lbs. H/B: 35.0kg/77.1lbs. Fis/F#: 35.0kg/77.1lbs. Cis/C#: 35.0kg/77.1lbs. Set 4-string 139.5kg/307.4lbs.