This LED tail light conversion kit is perfect for your 1957 Chevy. It features a Speedway Motors brand and a bulb shape code of LED. The tail lights and components are suitable for both the driver and passenger side of the vehicle. The item height is 3.700 inches, the item length is 3.80 inches, and the item width is also 3.700 inches. The lighting technology is LED, which provides a bright and energy-efficient glow. Please note that this item falls under the California Prop 65 Warning category, so be sure to take the necessary precautions. Upgrade your car's lighting with this top-quality LED tail light conversion kit.