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: Regular- String Gauges: .010, .013, .017, .026W, .036, .046- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness