Hub rings are sized by using two different numbers that are measured in millimeters. Compatible: Replacement For - Aluminum Hub Centering Rings suitable for most cars that MUST MATCH the wheels with 73.1mm center bore and vehicles with 56.1mm hub bore. Natural: Purchase Note - Please make sure the the size of wheel center bore and the hub of the vehicle before purchasing. Beathe life into you space with ou clea-sounding, vintage-inspied, coded landline phone fo home, office, o hotel 4PCS/lot Car Wheel Hub Centric Rings OD=67.1mm ID=66.1mm Aluminium... HUB ING - ALUMINUM SET (4pcs) - 73.1mm O.D. / 56.1mm Easily and quickly replace the old plastic hub-centric ring between the vehicle's hub and the wheel. Durable: Function - Hub Centering Rings are designed to fill in the gap between the car hub and the wheel center bore to eliminate vibration. 73.1 To 56.1 Hub Centric Rings Unique Bargains 4 Pcs Car Hub Centric Rings OD 72.6mm To ID 57.1mm Hub Centric Rings Wheel Bore Center Spacer Red Automotive Hub Rings Please allow 1-2mm differences due to manual measurement. Package List:4 Pcs Hub Centric Rings Designed to eliminate unwanted steering wheel vibrations and ensure a snug fit every time. Ensures a nice fit between your wheel and the hub. The outside diameter of the spigot ring should fit the wheel's center bore in the back of the wheel.