The AV Stumpfl VarioLock64 extension bar is a frame or system component for the VarioLock64 series. It has a specified length of 54 cm and is identified by manufacturer article number BVL-X054. The bar is listed as a single piece, indicated by the unit “STÜCK” in the article list. Its gross and net weight are both 0.83 kg. No projection surface, video signal interfaces, accessories, or additional dimensions are specified.