Special flat wound strings; special feature: round steel core, flatwound nickel alloy with silk wrap; JF324 4-string flatwound short scale 32"; suitable for Beatle Bass, Fender Mustang, Danelectro, Gibson EB-3 etc.; .043 .056 .070 .106; tension 58.37 kp;
The diameter of the D string is 0.056" / JF32056