Features: Flexible combination allows graph transmission to be used in more situations. 3mm positioning screws 3mm positioning screws designs to prevent deflections. Double 1/4 hand twist knob 1/4 standard screw for high versatility. It can be installed in multiple situations with the picture transmission brackets . Strong compatibility 17-30mm center hole distance, suitable for a variety of situations. Professional photographers, drones enthusiasts and video production team . Suitable for Outdoor aerial photography, film production and other occasions. Produced of quality aluminum, easy to carry & use. Specifications: Material: aluminum Thread: 1/4 Package Includes: 1xAluminum Transmission Mount note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differenceS between different monitors, the picture may not reflect the actual colorful of the item.