The AV Stumpfl VarioLock64 extension bar is a frame or system component for the VarioLock product series. It is supplied as an 85 cm bar for extending or configuring a compatible VarioLock64 frame system. The component is not a projection screen or projection surface and therefore has no projection area, aspect ratio, surface gain, or projection type. Its listed net weight is 1.1 kg, and the manufacturer article number is BVL-X085.