A moderately priced classical string, the La Bella 427 Nylon Classical Guitar Strings are by far the world's largest seller.Designed to be used for both classical and flamenco guitars, these are the standard and most versatile of strings. Tie end 1st-3rd white nylon, 4th-6th silver on nylon. Silver Plated Basses - White Trebles.E. & O. Mari, Inc., the maker of La Bella Strings, is one of America's oldest and largest manufacturers of fine stri...