Feature: 1. Powerful Tool: Can carry out off machine sync flash, support AF focus auxiliary light function, equivalent to mount on the camera top. 2. Off Machine: Allows flash to be separated from the camera to achieve a variety of flexible angles of light without changing the original functions. 3. Function: FC‑E3 off camera flash cord can connect the camera and top flash and ensure the synchronous operation. 4. Line Length: Adopted 50‑130cm/19.7‑51.2in spring line to avoid winding with other cables, convenient and practical. 5. Avoid Accident: Has a lock switch, able to avoid accidental disconnection during shooting to influence the shooting result. Specification: Item Type: Off Camera Flash Cord Material: Plastic Color: As Picture Shown Product Size: Cord Length: Approx.50-130cm/19.7-51.2in Weight: Approx.127g/4.5oz Interface: Hot Shoe Base, Hot Shoe Mount, Cold Shoe Mount, 1/4in Screw Hole Applicable Camera: for Film Camera And Digital Camera (Not Compatible for EOS 630/RX) Suitable Camera Top Flash Model: for 600EX RT,580EX II, 580EX, 550EX,430EX II, 430EX,320EX, 270EX,270EX II. . Package List: 1 x Off Camera Flash Cord1 x Manual Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.