The AV Stumpfl VarioClip Lock middle strut is a frame component for the VarioClip Lock system. It has a specified length of 47 cm and is supplied without studs. The strut has a net weight of 1.0 kg and is identified by manufacturer article number BCL-X/MST/X047. No projection surface, projection area, screen dimensions, video connectivity, or additional accessories are specified for this component.