The tether arm is a handy and elegant solution to tethered shooting. The arm Center Comes with a 3/8'' receiver, offering an easy mount on the tripod head as a crossbar. Two Gliding platforms equipped with a 3/8'' screw allows double ball-heads to mount for tethered shooting either with two cameras or camera/laptop. A fixed platform with a 3/8'' screw at both arm ends allows mounting more than two items.