Standard roller blind assembly. Efficient blackout functionality. The blind itself is white and has several insect marks across its area. These may or may not clean off - we didn't try as when in use the blind was behind curtains so wasn't seen.
Currently fits (internally) a window 2.4m wide although it may be possible to reduce this to fit your needs. I have the brackets for the blind but the screws will need to be provided.
No photo, it's a white roller blind