Savarez F50-21
Electric single string Focus 21

The Focus range of guitar strings breaks codes!
Made from new, innovative, stainless-steel alloy, wrapped around a hexagonal core, the Focus strings offer a different feel and sensation, a perfect balance between crisp highs and tight lows, excellent dynamics, super-bright tone, and more precise sound. The Focus strings are more durable, and stay in tune better, even with sustained use of a whammy bar.