This Thomastik Precision Viola A String has a solid steel core & produce a beautiful sound with brilliance. This string is very durable & has a long life span & present a budget solution for players in all fields. This is the perfect string for you if you want the robust but elegant style to your performance which will leave people feeling touched by the performance. They are perfect for those who need reliable strings that are long lasting & highly responsive. Its unique tones will add brightness to the overall sound & comfort during play.