JLC Pegasus Style 2 - Brushed Aluminum Projector Retrofit Shrouds Measurements & Diameter: 4.90" Total Body Radius, 2.75" Projector Exposure Area Available Colors: Brushed Aluminum Finish Fit Manufacturer Projector Size: 2.5" and 3" Projectors Suggested Uses: Headlights Housings Retrofit Work Needed?: Yes, professional installation is highly suggested.