White Knight 602-2 Aluminum Alloy 5 x 4.5"-5" Wheel Spacer, (Pack of 2) 5/16 inch thick Inner diameter: 3.55 inches, 90 mm Outer diameter: 6.43 inches, 163 mm Fits: 5x112mm - 5x130mm Fits: 5x4.50" - 5x5.00"