The AV Stumpfl MonoClip bottom frame bar is a system component for constructing MonoClip projection-frame systems. It provides a specified frame width of 691 cm, equivalent to 22 ft 8 in, and is supplied as one piece. The component is identified by manufacturer article number BMV-XN691/B and belongs to the MonoClip product series. It is a frame bar rather than a projection surface and therefore has no projection area, aspect ratio or surface-gain specification. Its net and gross weight are both 11 kg.