CLASSICAL NYLON GUITAR STRINGS NORMAL: .028 .032 .040 .030w .036w .042w Adamas Century Classic strings are a superb nylon string. The 4646 set is made with ball ends for quick, easy changing of the strings. The trebles are black and the basses are called gold but are actually a bronze wrap on a nylon-strand core. The black trebles produce a pure treble sound with the highest overtones. By the way, if you don't want the ball ends, just take a pair of scissors and cut the strings right next to the ball. Voila! Regular, tie-on strings! ADM-4646$4.73