The AV Stumpfl Monoblox surface RP 1:1 is a rear-projection screen surface designed for use with the Monoblox system. It has a square 1:1 aspect ratio and a projection area of 229 x 229 cm, equivalent to 90 x 90 inches. The overall surface size is 249 x 249 cm. This product is supplied as the projection surface only; the corresponding frame and stand are separate articles. The surface has gain code R10 SD and weighs 2.2 kg.