Pro-Arté strings are equipped with an exclusive multifilament core material that delivers a powerful and warm sound, while also lasting 2-3 times longer. In addition to the classic high nylon strings, the packaging includes a wound G string that offers better projection and balance. The treble strings are laser-measured and computer-controlled to ensure consistent diameter and tension, as well as the usual high quality. Quantity: 3 sets. Gauge: .0280, .0322, .0403, .029, .35, .043.