One set of Eurosonics (light gauge) that were on my bass for exactly one week, and which I played about two hours total. One set of Velvet Garbo strings that were on my bass for three months, and which I played probably a total of twenty hours. One set of helicore hybrids that I put on my bass and instantly took off. I would prefer to sell the strings as a set. Contact me at email@example.com if interested.