Monoblox rear-projection surface from AV Stumpfl with a 1:1 aspect ratio and a net projection area of 427 x 427 cm. The surface has an overall size of 447 x 447 cm and uses the R10 SD surface specification. This product is supplied as the projection surface only; the corresponding frame and stand are separate articles. The screen surface is identified by article number BXF-RQ447447A1SD and has a net weight of 7.5 kg.