PTZ Connection diameter 28MM, 6kg strong locking force and more accurate to stay in the photographer's booking position Quick invisible 360 degree horizontal rotation panoramic field of view to a wide ranging Semi-automatic spring adjustment buckled type,provide more semi-automatic spring angles adjustment mechanism, while overcoming the shortcomings of the clamping hand Quick release plate guide dislodgement resistant can be easily adjusted to the center of weight of the camera, to effectively the camera accidentally dropped Photography enthusiasts, media creators, travelers video bloggers and other people who need to take photos and record videos