From Manufacturer
The Action-King 8" Suction Mount Car Camera Rigging System from Proaim is a highly adaptable rigging system that can be easily and quickly mounted onto any moving platform for a stable and secure base for your camera setups. It is equipped with custom-designed speedrail clamps that allow 360° on pan and tilt axes, making it extremely easy to set up on any nonporous surface.
The system comes equipped with two powerful rated load capacities and is known to stay in place very securely. The included suction cups do not damage the glossy finish on your car or any other surface they are mounted on. The included rods allow for multiple setup options and customization. You can set the camera setup at any desired angle or level it within seconds, saving precious time on set.