The VarioLock64 middle strut top is a frame or system component manufactured by AV Stumpfl for the VarioLock64 product series. This black component is supplied without studs and is identified by manufacturer article number BVM-X/MST/OT. The delivery unit is one piece with a net and gross weight of 1.14 kg. No projection surface, projection area, screen dimensions, video signal connections, or other video specifications are stated.