Our “Beatle” Bass set is made up of special lengths and gauges. Each handmade string is calibrated to fit the three different bridge types made by Hofner.- Black Nylon Tape Wound- Warm and vintage tone, excellent sustain and longevity-F its Hofner “Beatle” basses and similar models that require 34? distance from ball-end to nut- String Gauges: .050, .065, .080, .100- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness