Used PRO HANZA Umbrella Holder. This type attaches to the tripod head mounting screw, and a head is set on top for use. Total length 165mm, height 105mm, center base diameter 60mm, weight 290g, aluminum alloy. It allows for freely changing the tilt position between the heads of medium and large tripods, and the balance is good. It was very convenient for placing a 100cm diameter umbrella on it on windless rainy or foggy days. I am selling it because I no longer use it. Thank you.