Projection screen spare screw bag supplied as a spare part for AV Stumpfl projection screen systems. The bag is yellow and measures 23.5 × 16 cm. It is intended for storing or supplying wing screws and is delivered without a logo. The product is identified by manufacturer article number BFE-BTL and has a gross and net weight of 0.014 kg. No projection, video signal, connector, lens, or screen-surface specifications are applicable.