Deliver a flexible feel while still maintaining a quick attack response that is essential for flamenco players / Laser sorted black nylon treble strings for consistent, precise intonation / Environmentally friendly, corrosion resistant packaging for strings that are always fresh / Made in the U.S.A. for the highest quality and performance / String Gauges: Trebles .0285, .0327, .0416 Basses .029, .34, .044 /