The SLIK Twin Camera Plate 300 allows you to use two cameras mounted to one tripod at the same time. It has a pair of 1/4?-20 camera screws, mounted in tracks around an off-center tripod socket. The off-center mount gives you control over balance when using larger or smaller cameras. The screw tracks allow you to control movement and distribute the weight. The tracks also allow you to avoid a physical interference between the two items. One of the tracks holding the camera screws extends roughly 1-2.4? (25-60mm) from the central tripod socket, and the other has an extended range of 1-4.7? (25-120mm). Most noteworthy, the mounting mechanism moves within this plate, instead of turning the entire plate atop the tripod threading like a propeller. The Twin Camera Plate 300 works best with tripods with a maximum leg segment diameter of 28mm or more.