Pack of 3 sets of strings. EJ74, D'Addario's best selling mandolin set, is the standard established by David Grisman and Ricky Skaggs. Warm and bright phosphor bronze tone with the optimal blend of tight playing tension and strong projection. Loopend construction for universal fit. Phosphor Bronze was introduced to string making by D'Addario in 1974 and has become synonymous with warm, bright, and well balanced acoustic mandolin tone. D'Addario Phosphor Bronze strings are precision wound with corrosion resistant phosphor bronze onto a carefully drawn, hexagonally shaped, high carbon steel core. The result is long lasting, bright sounding tone with excellent intonation. Gauges: Plain Steel .011/.011, 015/.015, Phosphor Bronze Wound .026/.026, .040/.040.