Unused strings removed from a brand new, high-quality Chinese-made wood bass (contrabass). The Chinese manufacturer exports the basses with these strings attached, but they are removed and replaced with different strings after being imported to Japan. (Obtained from an acquaintance involved in this process) Recently, Chinese-made strings are gaining global recognition, and these strings also seem to be high-quality despite their low price. I've actually used these strings on my own wood bass, and they produce a very bright and clear sound without sounding muffled or muddy. They also have sufficient sustain, allowing for effective glissandos with a satisfying "vwooo" sound, making them enjoyable to play. These strings can be used not only on wood basses but also on upright basses and silent basses. Although unused, they were once installed on a wood bass, so the product condition is listed as "no noticeable scratches or stains." The winding ends of the strings were removed, and I straightened them by hand as much as possible to make them easier to use next time, but some curling remains. Shipping will be on days other than Tuesdays and Thursdays.