Pirastro Flexocore Deluxe E A D G Orchestra Tuning Set Double Bass Strings I'm selling these because I replaced them with new strings after using them for about a year and a half. The condition is such that there are no major frays at the base of the strings, and I think they are still usable. Although the surface of the strings is rough, I was able to use them without any problems. E string has no base cushion. Please purchase these strings if you don't mind that they are used and the above-mentioned points. I think these are recommended for those who want to buy strings for the time being or want to try the sound of Flexocore Deluxe! * As shown in photo 3, I will ship them in a flat chrome steel bag, but the contents are Flexocore Deluxe, so please be sure not to make a mistake.