Vario64 middle strut manufactured by AV Stumpfl for use as a frame or system component in Vario64 structures. The strut has a specified length of 20 cm and is supplied without studs or snap fasteners. It is identified by manufacturer article number BVV-X/MST/X020 and has a gross and net weight of 0.75 kg. No projection surface, video signal connections, or screen dimensions are specified for this component.