New crystal material standard tension classical guitar strings, sold in sets of 3, offering high-quality tone. The 2nd and 3rd strings are Alliance, and the 1st string is crystal, creating a combination. Known for their exquisite balance. They resonate well. - Brand: SAVAREZ - Model: Evolution Cantiga 510 ERP - Tension: Standard Tension - Type: Classical Guitar Strings - Package: 3 sets - Material: New Crystal - Features: Solid Alliance Thank you for viewing.