I trying to take off the rims on my 88 GTA I just bought and put them on my Formula.

I can't get the center cap off??? They are 16" Boyds 5 stars and there is no screw holding them on, so I think they should just pop off.
Is there a trick for this? or am I doing something wrong???
I know its startin to **** me off

Thanks

put somthing blunt and long behind the caps when the wheel is off and just tap it a few times from the inside out and it should pop right off.

The wheels are on a car , Im trying to get them off.