4pcs 38mm (1.50") 5x4.75 Hubcentric Wheel Spacers (66.9mm Hub) fits Chevy Camaro LS LT SS 1LE Z28 Perfitsmance Billet 4x Brand NEW Wheel Adapters Vehicle Bolt Pattern 5x4.75Wheel Bolt Pattern 5x4.75Hub Bore 66.1mm Thickness: 1.50" inch (each spacer) Thread Pitch: 14x1.5 HUBCENTRIC Wheel Spacers With Wheel Centric Lip T6 6061 Billet Wheel Adapters 12.9 Grade Steel Threads Mainly used to give your vehicle an agressive stance, and will help with any clearance issues (if present) CNC Machined Usings Aerospace Aluminum