C9b Capo made specifically for the ukulele!

At a glance it looks like a banjo capo, but it closes onto a smaller neck, and accommodates a slightly wider fretboard. Testing on many brands confirms this capo is a perfect fit on all tenors, sopranos, concerts, and baritones ...except the occasional baritone with a very large neck. In these cases, the Shubb banjo capo (any model 5) is a good fit.

Plain Brass C9b