About the Product: 1. Helps reduce vibrations caused by improper wheel centering on the vehicle's hub. 2. Features a protective design combined with tire protection technology for practical and aesthetic benefits. 3. Designed to be securely installed using included adhesive aids. Compatible with other adhesives if preferred. 4. Available in two sizes: - For wheels with a 73.1mm center bore and vehicles with a 67.1mm hub bore - For wheels with a 66.6mm center bore and vehicles with a 57.1mm hub bore Please select the correct size based on your vehicle specifications. 5. Verify your vehicles wheel and hub bore dimensions before purchasing. What are hub-centric rings for? Most aftermarket wheels have a larger center bore to fit various vehicles. Hub-centric rings bridge the gap between the wheel and the vehicle's hub, ensuring precise wheel alignment. This improves installation ease and helps minimize potential vibrations. How do I know which hub ring to choose? Hub rings are sized using two measurements in millimeters: - The first number (e.g., 73.1mm) is the wheel's center bore diameter (outer diameter of the ring). - The second number (e.g., 67.1mm) is the vehicle's hub diameter (inner diameter of the ring). Specification: Color: Black, Yellow Material: Plastic Inner Diameter (Vehicle Hub Size): 67.1mm or 57.1mm Outer Diameter (Wheel Bore Size): 73.1mm or 66.6mm Placement on Vehicle: Left, Right, Front, Rear Item Included: 4 Pcs Wheel Hub Centric Rings Verify compatibility with your vehicle before purchase. Motor Vehicle Wheel Parts