Wired Quick Shoe base with a 1/4 inch screw. Screw at the bottom: 3/8 inches. Material: Aluminum alloy.

Weight: 652g. Easy installation in seconds with horizontal and vertical levels for better positional awareness. The lock protects your device. Equipped with 3 adjustment buttons, a Quick Shoe socket with 1/4 and 3/8 inch screws at the bottom.