Dunlop Classical Strings are designed to achieve tonal balance, smooth tactile feel, and the wide dynamic range required by classical guitarists. The bass strings feature a high grade silver-plated copper wrap surrounding a nylon core for increased fundamental, playability, and focused low end. Our treble strings are made of Dupont Tynex for consistency, ease of tuning, and a warm but singing tone. Classic Premier Ball End – 6-String Set Premiere Classical Silver plated basses Normal tension Ball end