This is a set of ROTOSOUND BS66 Billy Sheehan Signature bass strings. I forgot I sold my bass and just realized I had these in stock, so I'm not sure when I bought them. They are unopened, so I think they should be fine, but there's a slight possibility of some variation in sound quality. Please be aware of this before purchasing. I do smoke, but I do not handle the items with those hands. I also do not bring them to places where they would be exposed to smoke. Also, I have a cat at home, so please refrain from purchasing if you have any allergies. I have stored the strings in a place where the cat cannot reach them. If you have any questions about the item or would like more pictures, please let me know in the comments.