Not all of these spacers are the same! The AlfaStop spacers are made in England, are fully finished and the hole is central! 2x required per car. 
 
Part Name: Spider Rear Quarter Bumper To Body Mounting Spacer
AlfaStop Product Code: 1CWF100
Original Alfa Romeo Part No: 101.03.59.245
Model: Guilia 101 Series, Giulietta 750 & 101
Quantity Per Car: 1