I don't have the bottles in from of me but you should be able to find out
from your Yamaha dealer or from Yamaha themselves. There is only one Yamaha
polish for the keys. For the finish, you want the "hard gloss" version if you
have the high gloss, hard polyester finish. It is likely that there are other
manufacturer's for high gloss polishes but I have not researched them or
tried them.