Monoblox64 top bar in black finish for constructing AV Stumpfl Monoblox64 frame systems. The component has a specified width of 447 cm (14 ft 8 in) and weighs 7.8 kg. It is supplied as a frame or system component rather than a projection screen or surface. Manufacturer: AV Stumpfl. Article number: BXW-XN447/T. No video signal inputs, outputs, connectors, lenses, or projection-area dimensions are specified.