Thomastik-Infeld Spirocore Bass … Thomastik-Infeld Spirocore Bass SET 1/2 Item No. 3887,0 Manufacturer Thomastik-Infeld Thomastik-Infeld Spirocore Bass … Thomastik-Infeld Spirocore Bass SET 1/2 × Thomastik-Infeld Spirocore Bass SET 1/2