EJ74 is the world's most popular Phosphor Bronze mandolin set. Since D'Addario introduced Phosphor Bronze guitar strings in 1974, they have been synonymous with warm and well-balanced acoustic tone. Ideal For: Folk Bluegrass EJ74 is the world's most popular Phosphor Bronze mandolin set. Since D'Addario introduced Phosphor Bronze guitar strings in 1974, they have been synonymous with warm and well-balanced acoustic tone. String Tension Chart Item # Note Diameter Tension LE011 E 0.011 in 23.25 lbs LE011 E 0.011 23.25 LE015 A 0.015 19.26 LE015 A 0.015 19.26 LE026pb D 0.026 23.36 LE026pb D 0.026 23.36 LE040pb G 0.040 24.48 LE040pb G 0.040 24.48 Product Features Coating: Uncoated Number Of Strings: 8 Set Type: Sets Wrap Material: Phosphor Bronze