AV Stumpfl Inline-Spring Roller Plana case designed for the Inline-Spring Roller Plana system. The case dimensions are specified as 9 × 8.5 cm. It is supplied as an individual accessory unit and is identified by manufacturer article number BIS-P/SK090/R5. The product originates from Austria and is classified under customs tariff number 9010 60 00. No projection, video signal, connector, or electrical specifications are provided.