VarioLock64 middle strut bottom manufactured by AV Stumpfl for use as a structural component in the VarioLock64 system. The component is supplied with M8 rivet nuts and without studs. It is identified by manufacturer article number BVL-X/MST/UT and has a net weight of 1.42 kg. The item is a frame or system component rather than a projection screen or surface, so projection dimensions and video signal specifications do not apply.