The AV Stumpfl VarioLock64 middle strut parts are frame or system components for the VarioLock series. The set comprises a top part and a bottom part, each measuring 99 cm, as indicated by the product specification “top and bottom part, 2x99cm.” These components are intended for use within a VarioLock64 system and are not projection screens or surfaces. No projection type, aspect ratio, screen size, projection area, connectors, or video signal interfaces are specified.