AV Stumpfl Monoblox surface RP 21:9 is a rear-projection surface for the Monoblox system, supplied without a frame or stand. The overall surface measures 691 x 303 cm, while the projection area measures 671 x 283 cm. It uses a 21:9 aspect ratio and R10 surface gain code. The surface has a net weight of 10.5 kg and is identified by manufacturer article number BXF-RU691303A1D. Frame and stand are separate articles.