Evah Pirazzi Violin Strings have a synthetic fiber core that produces a complex, brilliant tone that is rich with overtones. These strings are extremely responsive and have an exceptional dynamic range. They capture all the expressive nuances of the player. Evah Pirazzi strings are long-lasting, consistent, and are highly resistant to changes in temperature and humidity. This set includes Silver G, Silver D, Aluminum A, and Gold Steel Ball E.