Hard tension offers rich tone, increased resistance, and strong projection / Laser sorted black nylon treble strings for consistent, precise intonation / Precision wound basses for warm, projecting tone and the utmost consistency / Made in the U.S.A. for the highest quality and performance / String Gauges: Trebles .0285, .0327, .0410 Basses .030, .036, .044 / Environmentally friendly, corrosion resistant packaging for strings that are always fresh