Rota rb Center cap

[dat240z71]

I am looking to get Rota Rb 15 x 7 FOR my 68-2000, can someone tell me the measurement of the center cap. Height and how big the opening is in the wheel where the cap seat into. I know the cap will not fit on the front hub as the hub is longer than the cap, I want to find and placement cap.

[onesickZ]

hey, i don't have them with my today but if I remember I will post what you need next Sunday. I just purchased 15x7 +4 RBs for my Z