13-56Medium Set EJ12EJ12 is a medium gauge 80/20 Bronze set that offers heavier gauges for increased volume and projection. 80/20 Bronze, the original acoustic alloy introduced to by John D'Addario Sr. and John D'Angelico in the 1930s is a popular alloy for recording due to their crisp, deep and projecting tone and appeal to many traditionalists and vintage enthusiasts for their historical significance.IDEAL FOR : ALL GENRES------------------------------------------------------------------------------------------------------------------------------------------------------------------------------STRING TENSION CHART    ITEM#   NOTE  DIAMETER   TENSIONPL013E0.013 in27.42 lbsPL017B0.01726.31BW026G0.02634.20BW035D0.03534.00BW045A0.04531.61BW056E0.05626.74------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PRODUCT FEATURESCoating: UncoatedNumber Of Strings: 6Set Type: SetsWrap Material: 80/20 Bronze ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------D'Addario's heaviest 80/20 bronze set, ideal for heavy strumming and flat-pickingExtra-bright tone mixed with deep and projecting bottom endEnvironmentally friendly, corrosion resistant packaging for strings that are always freshAll D'Addario strings are designed, engineered, and manufactured in the USAString Gauges: Plain Steel .013, .017, Bronze Wound .026, .035, .045, .056