AV Stumpfl Monoblox rear-projection surface for 4:3 presentations, using the R10 surface type. The projection area measures 183 × 137 cm (72 × 54 in), while the overall surface measures 203 × 157 cm (80 × 62 in). This product is supplied as the projection surface only; the corresponding frame and stand are separate articles. The surface has a calculated 90-inch diagonal and is identified by article number BXF-RV203157A1ID.