Thank you for viewing. This is a SIRUI TY-70-2 Arca-Swiss compatible quick release plate. I believe it's mostly unused, but for some reason, there are slight rotation marks on the underside of the screw. Please judge from the images. It has a rubber pad for non-slip grip and a slide stopper (red) to prevent the camera from accidentally slipping off. Aluminum alloy Overall width: 60mm Overall length: 70mm Weight: 69g Plate only.