Thomastik Infeld Spirocore violin string set 4/4 medium id: 5341 sku: TH-S-15 brandname: Thomastik Infeld series: Spirocore Details Documents violin string set 4/4 medium, spiral core, includes TH-S-9, TH-S-10, TH-S-12 and TH-S-13 Thomastik violin strings brochure