@pky - they are Vision Solo's. The most surprising characteristic was that they seemed thinner than the Zyex, at least at the threaded ball ends where they went into the tailpiece much easier than the Zyex did. They must be light tension strings because they def dont feel like the highwire tension of the Zyexs either. But, after 3 years of regular playing, Im still such a noob at this considering Ive avged 6 months or more between string changes. Its not like I have a recent memory to compare them too. They are nice though, the sound is like what I want my violin to sound like. Well, except that its my fingers and bowing....but still. lol.