1. Material: plastic and metal 2. Color: the plastic part is black and the metal part is bright white (chrome-plated) 3. Installation style: Thread 4. Applicable models: For FUJI X100 X10 DF-1, F Leica M6 M8 AE-1 5. This mechanical shutter cable is a hollow-clad steel cable that matches the spiral hole in the shutter of the body. 6. Suitable for digital cameras with shutter release holes and traditional film cameras 7. The circular compass in the middle of the button can be used to lock. Press and hold the button to turn the circular compass to lock it, and turn it in the opposite direction to unlock it. 8. With B door lock function, it is suitable for use with cameras with mechanical shutter release jacks. Using a shutter release to control the camera shutter with a tripod can ensure the camera's stability to a greater extent.