Description de chez Amazon UK : - E-string steel rope core, chrome wound, orchestra tuning, medium - single string for Double Bass 3/4 Belcanto - orchestra tuning. 3/4 size for scale 1040-1060mm (41-41.7"), also suitable for 4/4 size to scale 1100mm (43.3") - tension medium 28, 8kg/63.30lbs - BC64