Boston   machine heads for ukulele, guitar model, double drilled metal shaft, plastic buttons, set of 4

Boston   machine heads for ukulele, gold plated, set of 4 pcs, amber buttons

Boston   machine heads for ukulele, gold plated, set of 4 pcs, pearloid white buttons

Boston   machine heads for ukulele, set of 4 pcs, brown buttons, nickel plated

Boston   machine heads for ukulele, set of 4 pcs, brown buttons, gold plated

Gotoh   machine heads for ukulele, ultra light, 1:14 ratio, white button, nickel