LaBella (830) String Type Folksinger Set, Black Nylon The 830 Folksinger set has ball-end black nylon trebles and Golden Alloy wound basses; The nylon strings include a small ball attached to one end of each string Black nylon trebles produced greater aural transparency and sound projection Golden Alloy (80/20 Brass) basses produce exceptional memory for pitch and consistent sound production String Gauges: Black Nylon: .028, .032, .040; Golden Alloy: .031, .035, .044 Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness Easy to use and is suitable for both Spanish style folk and classical guitars. Medium Tension; Made in the USA with American Wire