The Manfrotto 143A Magic Arm with Camera Bracket is a fully articulated arm with 90 degree pivotable and 360 degree rotatable ends, and an elbow that rotates 360 degrees. The lever tightens and locks for precise positioning of a small light head or camera. The Magic Arm has 5/8 inch studs on ball joints at both ends with 3/8 and 1/4 inch  female threads. Although it is supplied with a camera platform, this item requires a Super Clamp or Base