Pirastro Wondertone Solo Series Violin String Set 4/4 Size Medium E Ball End Wondertone Solo Series Violin String Set 4/4 Size Medium E Ball End Wondertone Solo Series full string set for violin, available in a variety of styles A focused and clear synthetic core string with no background noises It is characterized by a quick and easy response, is remarkably stable, and features a short break-in time resulting in instant playability This well-balanced set is resistant to changes in temperature and humidity