The AV Stumpfl monoblox64 middle strut is a black-anodized frame component designed for 21:9 monoblox64 screen systems measuring 325 × 149 cm. It is supplied as a single piece and is identified by manufacturer article number BXW-XU325/MST. This item is a structural system component rather than a projection screen or surface, and therefore has no projection area or video signal connections.