Warchal Ametyst strings offer a rich palette of sounds with soprano shadings and distinct contours. Though intended for higher level violins, they improve musical instruments of all categories. They offer a rich variety of timbres and bring out the the best sound characteristics of your musical instrument. Comprised of synthetic fibers (partly wrapped with special alloy, metal, including silver). Comparable to high-quality gut strings in tone Resistant to changes of temperature or humidity, with an excellent tuning stability. Size: 4/4 Tension Medium  E String End: Ball Loop