The AV Stumpfl VarioClip Lock middle strut is a frame or system component for the VarioClip Lock product series. It has a specified length of 29 cm and is supplied without studs or press buttons. The component is identified by manufacturer article number BCL-X/MST/X029. It is supplied as one piece and has a net and gross weight of 0.3 kg. No video signal connections or projection surface specifications are provided.