WE ARE AN AUTHORIZED PIRASTRO DEALERPirastro Perpetual Violin String Set - Medium Gauge - Removable Ball E with Aluminum Wound APirastro Perpetual provides a large sound volume and carrying power combined with a precisely focused sound projection. The clarity of its sound is balanced with an abundance of colors. Its vibrant tone attack and optimal string response seamlessly complement Perpetual's sound qualities from extreme fortissimo to the most sensitive whisper. The innovative core material allows a comfortable smoothness during legato, shifting, string crossings, double stops and chords. The extended reverberation of the Perpetual brings forth an exuberant luster. An extreme tuning stability is reached immediately after stringing the instrument.For 4/4 ViolinFull String SetMedium GaugeE String: Platinum-Plated Steel - Removable Ball EndA String: Aluminum Winding - Synthetic CoreD String: Silver Winding - Synthetic CoreG String: Silver Winding - Synthetic CoreWE ARE AN AUTHORIZED PIRASTRO DEALER!STVNPPT16_1NABWe are Johnson String Instrument, a family owned and operated business that has served the string instrument community since 1976. We are committed to offering you the best products with outstanding service. We offer an incredible selection of instruments and thousands of music accessories for beginners to masters!If you don't find listed what you're looking for, simply contact us. We can provide expert advice about what instrument or accessory would be perfect for you.Click here to visit our eBay store.