Very easy to set up, each string came in separate bag as there is no colour codes. At first I though that these are the best strings I have ever played. After three days the snappy brightness turned into too mellow, almost muddy sound and I even gently pre-streched them on setting up. If I had a guy changing these for me daily on tour, these would be the best, but I change them myself and pay for them myself too. I guess Flea does not have to worry about that. If I ever have very important gig, I will buy these for that one, but otherwise I will try something else. Too expensive to change strings every few days. Unless you like the mellow sound, so you don’t have to change them!