AV Stumpfl Monoblox surface RP 21:9 is a rear-projection surface from the monoblox series. It has a 21:9 aspect ratio and an R10 surface gain code. The overall screen size is 386 x 174 cm, with a net projection area of 366 x 154 cm and a stated diagonal of 156 inches. The product is supplied as the projection surface only; the corresponding frame and stand are separate articles.