New, unused double bass strings. Although there is no packaging, I was told by a musical instrument store clerk that they are "Fortune" brand strings. I purchased them in bulk, but I haven't used them all, so they've been stored at home. They are made in China, but the quality seems to be good. I compared them to the Japanese-made "Cherry" strings, and I felt that these Fortune strings produced the original sound (thick sound) of the double bass. I think they can be used for upright basses and silent basses as well as double basses. Shipping will be on days other than Tuesdays and Thursdays.