Darco (by C.F. Martin) Darco Electric Nickel Wound Light Rock, .010 - .046, D-9200 1st E Plain Steel .010 2nd B Plain Steel .013 3rd G Plain Steel .017 4th D Nickel Wound .026 5th A Nickel Wound .036 6th E Nickel Wound .046 Extra 1st & 2nd Strings! Our Darco electric guitar strings also meet your need for ultimate value. Sets are specially selected for rock and jazz.