This is a complete door assembly for the left hand 1955 and 1957 hardtop. The door assembly includes the inner and outer skin. It is die formed from electro-galvanized steel and phosphate treated for immediate painting. It features zinc plated tapping plates and door handle reinforcements for increased corrosion resistance. The door assemblies are ready for your window hardware, door handles, panels and hinges. Made with great care in the USA. Built out of OE quality heavy gauge sheetmetal to ensure quality and consistency.