AV Stumpfl Vario surface FP is a front-projection surface designed in a 4:3 aspect ratio. It has an overall size of 400 by 300 cm and a net projection area of 380 by 280 cm. The surface uses the R10 gain specification and is supplied as the projection surface only; the corresponding frame and stand are separate articles. Net weight is 4.8 kg. The surface article number is BVF-AV400300A1, and the complete set is BVV-AV400/R10.