La Bella Has Over 400 Years of String Making Experience The tradition of string making dates back to the 1640s in Salle, Italy, where the Mari family supplied gut strings to the famous violin builders of Cremona. In 1913, brothers Olinto & Emilio Mari arrived in New York bringing their family craft to the States. Over the years, the brothers shaped the landscape of the string industry with their innovative designs. Every set is manufactured using a perfect combination of traditional methods and latest technologies to produce a superior string. 413P Professional Studio A unique design, the 413P Studio set has clear high-density nylon trebles and golden alloy (80/20 brass) wound basses. The first noise-free classical guitar strings, this set has precision polished basses. The painstaking process of polishing wound strings smoothens the surface of the wound string using a stone-grinding method. This helps in eliminating the harsh squeak when shifting positions or playing a glissando. Clear nylon trebles produced greater aural transparency and sound projection Polished Golden Alloy (80/20 Brass) wound basses produce exceptional memory for pitch and consistent sound production Medium Tension String Gauges: Clear Nylon Trebles: .029 .033 .041; Polished Golden Alloy (80/20 bass) Wound Basses: .030 .033 .042 Made in the USA with American Wire