AV Stumpfl Monoblox surface AP 4:3 is a projection surface for front projection with an overall size of 345 × 264 cm and a net projection area of 325 × 244 cm, corresponding to 128 × 96 inches. The surface uses a 4:3 aspect ratio and R10 surface gain code. It is supplied as the projection surface only; the Monoblox frame and stand are separate articles. Manufacturer article number: BXF-AV345264A1D.