This is a tripod head/shoe. It's an accessory used with a tripod to keep larger cameras/video cameras from tilting. There's a fixing protrusion next to the screw that attaches to the camera/video camera, so please note that it can be connected to devices with a protrusion hole next to the screw. *I used this for a video camera for a while and then stored it for a long time. It looks very clean. Type: Head/Shoe Size: Approximately 4.7cm (height), 11.5cm (width), 0.8cm (thickness) Thank you for looking.