. This unique portable screen is easy to use and very stable with its high quality casing. The Optoma MWL Pull Up is an ideal screen for travelling whether it’s from room to room or around the country. This screen is ideal for when you are unable to mount a screen to a wall or ceilingScreen Type . Portable Format . 4 3 Colour . Matte White 1.0 gain Screen Viewing Diagonal . 72 Inch . .