This is a brand new locking center cap with metal ring for a BBS RS 15", 16", or 17" wheel.  This the 2nd generation cap, so please make sure the locking mechanism is correct for your wheel.  The part number of the ring is 09.32.151P and it has a diameter of a 6.75" diameter plate.  The ring has part number 09.24.187, the locking black plastic ring is 09.23.133, and the hex nut is 09.23.131,  Comes NO emblem.  

This cap will fit a BMW E39 BBS RZ 16" wheel, but please be understand that this color will not match the factory BMW silver wheel color. 

Shipping is $6 in the US.  Please see the calculator for international shipping.