This 15" spinner hub cap wheel cover is an original vintage part for the 1955 Buick Roadmaster, complete with ring. The item has a genuine OEM finish and has not been modified or altered in any way. The brand is Buick and the manufacturer part number is unknown. Please note that there is no manufacturer warranty for this item. This vintage piece is perfect for collectors or those looking to restore their classic Buick.  PLEASE NOTE THIS IS THE EXACT ONE THAT YOU GET.  THERE IS THIN PAPER CARDBOARD ON THE BACK AS NOTED AND UNSURE WHY