Velbon Ultra TR 463M (21288) Velbon Ultra TR 463M The TR series featue a detachable centre column elevater, 6 sections legs and ball and socket heads. 2 independet stopper knobs are the feature of the head. One stopper for the horizontal panning for the panoramic shots. The other stopper is for mutli angle position of the ball head. Adjusting tension of the ball is incorporated in the stopper knob. Use the finger to rotate adjuster slightly to right or left to have ideal tension to move the ball. Sorry! No technical specifications available EAN: 4907990412881