Good strength, durable, beautiful appearance, non-shrinkage deformation. 2.5mm joint, using gold plating process to prevent the contact from oxidizing after multiple plugging and unplugging, reducing signal transmission loss. Suitable for remote shutter, interval meter, trigger flash timer, etc. Used for remote use of shutter release to reduce camera shake. Made of high quality material, fine workmanship, perfect match for flash and remote control equipment.