150'' Portable Projector Screen HD 16:9 White Dacron 150 Inch Diagonal Video Projection Screen Foldable Wall Mounted for Home Theater Office Movies Indoors Outdoors

Before I ordered I thought the back is pure black, but this is just a frame. Both sides are white made of very very thin material like a mesh. It has a holes rings for hooks or poles to hang like curtains, but material needs to be well straighten to be absolutely flat. Any wind and wrinkles will disturb during watching. Also is very big. So can be folded to make smaller screen if there is not enough space in room- I bought the biggest for that purposeI found out that the screen quality is much better on plain wall. This screen made it less bright, like watching video through curtain, colours were pale or foggy, like there will be a cloud disturbing. And I stop using this.