The AV Stumpfl Inline-Crank Plana Case 12.5 x 12 cm is an accessory case associated with the Plana inline-crank system. It is supplied as an individual piece and is identified by manufacturer article number BIK-P/SK125. The listed case dimensions are 12.5 cm by 12 cm. No projection, video signal, connector, lens, or screen-function specifications are provided for this accessory.