The AV Stumpfl VarioClip Lock middle strut is a black frame or system component with a length of 29 cm. It is identified by manufacturer article number BCM-X/MST/X029 and belongs to the VarioClip Lock product series. The component has a net weight of 1.18 kg and is manufactured in Austria. No projection surface, projection area, video input, video output, connector, or screen dimensions are specified for this frame component.