The two unbroken downpipes have 4 fixing lugs, although you may need to shorten the pipe for smaller buildings. However, one of the downpipes is broken, as shown in the images.
3x HORNBY Plastic Station Lamps (GNER/ScotRail-like Blue)
3x HORNBY Station Lamps (ex R502-200/Green) for Hornby Plastic Station Buildings
3x HORNBY Station Lamps (ex R502-200/Blue) for Hornby Plastic Station Buildings