・Used Spirocore Soft strings for double bass. ・One owner. ・There is no packaging (printed information of the name), but these were installed on the instrument at a musical instrument workshop, specifying the same product name. Please check the colors of the silk winding (red and purple), which are a characteristic of this product, in the photos. ・These were used on an instrument with a string length (length from nut to bridge) of 105cm. ・I believe there are no major quality issues, but please check the enlarged photos (5/5) for the color, shine, and any kinks in the winding (there are traces of the usual force applied to the silk winding and the parts that touch the bridge). ・All items in the photos are included. ・These will be delivered as is. Thank you.