Gotoh VK1-19 Black.  These are the same knobs that Ibanez uses.  These are the metal knurled knobs with set screw found on many Ibanez guitars. Size = 19 mm wide x 18.4 mm high, 6 mm shaft width.  Authentic Gotoh.  We import them from Japan.  They are not from China like many of the other knock offs available.  Knob will come with gotoh packaging shown in photo.  You will receive one knob per order.

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