Canon CY2-1233 Pin Holder
Canon CY2-1234 Pin Spring
Canon CY2-1948 Shoe Base
Canon CY2-4265 Wide Panel
Canon CB4-0746 Flash Shoe
Genuine Canon flash shoe foot for the Speedlite 420EX, 430 EX, 550EX, 580EX, MR-14 EX, and Twin Lite MT-24EX. Package of 1 foot. Made by Canon Japan. The contact pins are available separately here.