Ukes with Alex custom Low G, nice and narrow at .029" it should fit into many nut slots without modification.
Silver wound strings are clear and clean sounding with a good amount of bass but rarely boomy - a good match for any tonewood or laminate concert or tenor ukulele. Will also work on a soprano with a little bit of nut modification.
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String measurements:
Low G: 0.029w' - Silverwound Nylon Core
Check out Alex Beds video explanation with a collection of useful audio samples of his Low G set.