Quick overview from the supplier:
Manual 240x200cm reflecta Rollo SilverLine, 4:3, Rear Projection
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https://reflecta.de/en/silverline-rear-projection/347-reflecta-rollo-silverline-240x200-cm-43-rear-projection.html
Product details:
• Mounted to wall or ceiling.
• Simple installation and easy handling.
• Large viewing angle.
• Suitable for rear projection.
• High-quality screens available in RückPro (1.6 gain) quality.
Format 4:3
Gain 1.6
Viewing angle 120°
Fabric weight/m² 420 g
Fabric thickness 0.32 mm
Fire protection class M1
Weight 9 kg