Augustine Classic Blue High Tension (A-5th) Single Classical Guitar String Augustine Classical Strings are designed to give you endless possibilities that will best suit your particular needs. The best way for you to decide which of our strings sets will sound best on your guitar is simple: try them and let your ears be the judge. Features: String: Blue Bass 5 (A) Type: Silver Plated High Tension Diameter (in): 0.036 Diameter (mm): 0.91 Tension (lbs): 15.75 Tension (kgs): 7.14 Pack Qty: 1-Single String