Encoder knob, for Ensoniq MR/ZR keyboards. This replacement data knob fits onto a D-shaft, and is 38mm in diameter.
This item is USED.
There are 2 of this item in stock.
$9.95
(Part # 4781)
Click on photo to enlarge
If you're not sure whether this item is compatible with your instrument, select the brand and model here to check.