Spirocore medium spiral core strings, tungsten wound. - Brand: Spirocore - Model: SS32 (Cello G) - Type: Medium, Spiral Core, Tungsten Wound - Country of Manufacture: Austria - Additional Model: SS23 (Cello C) Thank you for viewing. Purchased about 3 years ago and stored in a case as spare strings, so the packaging bag is in poor condition. The strings are unused and in good condition.