Two sets of S-Flat Wound 4-string bass strings from the long-established American string maker, LaBella. Gauge: 045-070-090-105. These strings are no longer in distribution, but I am offering the ones I had in storage as replacements. Since they have been stored for a while, I have visually inspected the contents for peace of mind. Please consider this, understanding that these are flatwound strings. Thank you.