The VarioLock64 45 cm extension bar by AV Stumpfl is a frame or system component for the VarioLock64 system. It is identified by manufacturer article number BVL-X045 and supplied as a single piece. The bar has a specified net weight of 0.8 kg and a length of 45 cm. It is not a projection screen or surface, so projection area, aspect ratio, gain and projection dimensions do not apply.