Larsen Aurora strings Solid steel core, A & D stainless chrome-steel alloy wound, G nickel wound, C tungsten wound. Warm, brillant sound without metallic overtones 1/2 Cello (600mm scale/23.6 inch scale) A, Steel core wound with chrome steel, 1/2 Medium tension 15.5kg/34.2lbs D, Steel core wound with chrome steel, 1/2 Medium tension 12.2kg/26.9lbs G, Steel core wound with nickel, 1/2 Medium tension 11.1kg/24.5lbs C, Steel core wound with wolfram, 1/2 Medium tension 11.06g/24.2lbs Set medium tension 49.8kg/109.8lbs