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