Developed by La Bella's president Richard Mari Cocco, Jr. with Ned Steinberger, these strings have been manufactured to exact specifications for Steinberger's revolutionary headless instruments.- Specifically designed for Double Ball systems used by Steinberger, Arbor, Burnside, Cort, Hohner, Louts, Mach I and Status- Stainless Steel Flat Wound- Tension: Light- String Gauges: .043, .060, .082, .104- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness