This set of AV Stumpfl wing screws is designed for use with one AT48 in Monoblox 32 and MonoClip 32 frame systems. The product is supplied as a set and is identified by manufacturer article number BFZ-F/S/BXS/AT48/1. It is a frame or system component rather than a projection screen or surface. The set has a gross and net weight of 0.16 kg and is manufactured in Germany.