The only round wound string that can be considered a "Jazz" string. The winding material is smaller, and applied with a very dense wrap. They have a strong fundamental-rich jazzy tone. Somewhat brighter than a flatwound, jazz and swing players note the clarity and the "piano-like" quality. This is one of the best jazz, swing and BeBop strings there is. Nothing like it anywhere for any price. Highly recommended.
BB111 Extra light gauge
011 .015 .19 .26 .034 .047