I have this Kyser Banjo/Mandolin capo and use it on ukuleles and also on an old vintage 1920's tenor banjo. The tenor banjo is tuned DGBE, like a guitar's 4 skinniest strings, which is also how baritone ukes are usually tuned. If you capo that tenor banjo or the baritone uke at the 5th fret with this Kyser capo, you find yourself magically back at GCEA. As you know, GCEA is the standard ukulele tuning for most! So it works really well for that.