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.- Calibrated for the correct length and tension needed for “Trans-Trem” non-tremolo Steinberger instruments- Stainless Steel Round Wound- Tension: Extra Light- String Gauges: .009, .011, .016, .024W, .032, .042- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness