These replacement keys are for the Yamaha YPG-235/535, DGX-300 and the other shown below. Except for the top G, Top C and bottom E they come in groups with three groups making an octave. Be sure to select the group you need from the dropdown during ordering. You can find the 5 note black group here.

DGX-220
DGX-230
DGX-300
DGX-305
DGX-500
DGX-505
DGX-520
DGX-530
NP-11
NP-30
YPG-225
YPG-235
YPG-525
YPG-535
YPP-200