AV Stumpfl Monoblox surface AP 4:3 projection surface for front projection, designed for use with the Monoblox frame system. The surface has a 4:3 aspect ratio and a projection area of 610 × 457 cm (240 × 180 in). Its overall size is 630 × 477 cm (248 × 188 in), with an R10 surface gain code. This product supplies the projection surface only; the corresponding frame and stand are separate articles. Manufacturer article number: BXF-AV630477A1D.