It is more then solid enough, and does what it is made for without problem. The picture shows two knobs on the body, there are 3 (the third is hidden on the backside of the picture). The third one is smaller and is for adjusting rotation. The second big knob was probably but on to adjust the drag on the ball, but the mechanics inside the head are not good enough for that. So both knobs work just for tightening the head, I guess its OK if you multidextrous
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