Roll-up screen from Magnetoplan, 1500 x 1500 mm, format 1:1. The stationary screen features a roll mechanism with an octagonal housing made of sheet steel and white plastic end caps. Integrated mounting points on both sides of the housing allow for direct wall or ceiling installation. It includes a sophisticated rolling mechanism with a winding shaft that has a retractable spring and a holding device that engages approximately every 13 cm. The housing diameter is 6 cm for a screen surface width of 180 cm and 7 cm for wider surfaces. The screen surface is made of a fabric carrier with a black, light-proof backing. It is a Blankora P screen, type D, made of tear-resistant polyester fabric with a black backing and a brightness factor of about 1. The horizontal viewing angle is approximately 40 degrees to the right and left of the projection axis. The weight is about 500 g/m², and the material thickness is approximately 0.35 mm.