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. This item replaces old catalog #2930.