Most banjos, mandolins, and bouzoukis have flat fretboards. If you’re not sure about yours, chances are it is flat.
for Banjo, Mandolin, Bouzouki
 Our model 5 capo — “for Banjo” —is 1.5″ wide, and it also fits most mandolins and bouzoukis, many tenor guitars, and other instruments with narrow fretboards.. The model 5 capo is available in these various styles:
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Standard Capo C5
$29.95 -
Standard Capo C5n
$29.95 -
Capo Royale C5g
$32.95 -
Capo Noir C5k
$32.95 -
Deluxe Capo S5
$32.95 -
Original Capo C5b
$29.95 -
FineTune Capo F5
$80.00
Available for both flat and radiused fretboard. Most of these instruments have flat fretboards; if you’re not sure about yours, chances are it is flat.