This was recently harvested from an SP88 we junked out.
As we understand it from what we have found on the internet, this key should fit the following models:
Casio AP10, Kurzweil K2500, Kurzweil K2600, Kurzweil PC2, Kurzweil PC3, Kurzweil PC1SE, Kurzweil PC3LE6, Kurzweil PC3LE7, Kurzweil RG100se, Kurzweil SP76, Kurzweil SP88, Suzuki DP-88, Suzuki KM-88 Keyman, Roland EP-85, Roland EP-97, Roland F-30E, Roland HP-130, Roland HP-1300e
If you are in doubt, contact us with a picture of the key that needs replacing in your synth.