The WN-02 window clamp kit has a 3/8th stud mounting platform. It can fold up compact for easy carry and features four foldable arms with rubber caps that can be used for stability when mounted to a car window or simply placed on a flat surface as a "lowpod" support stand for equipment. This window clamp kit is versatile, heavy-duty, and multi-purpose which is perfect for use inside and around a vehicle. (ballheads are not included with this kit)