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. HRS-75 Nickel-Plated Round Wound -7-String, 11-70 La Bella 7-String Electric Guitar strings offer players well-balanced sets for either standard or drop-key tunings. Constructed with thicker cores, these sets correct the tension for de-tuned riffing, while preserving the feel and overtones for guitar solos in the higher register. The ultimate Rock guitar string, the HRS series are very bright and long-lasting. These nickel-plated steel round wound strings are super-flexible for bending and sustaining notes. .070 / 7th String is wound at 33" Nickel-Plated Round Wound 7-String Set Set String Gauges: uges: .011, .014, .018, .036w, .046, .052, .070 Made in the USA with American Wire. Packaged using MAP Technology to prevent tarnishing and ensure freshness.