There is a video of it, it has a triangular cross section. There appear to be screw holes (or rivets), so I'm going to guess that it's three aluminium sheets s

There is a video of it, it has a triangular cross section. There appear to be screw holes (or rivets), so I'm going to guess that it's three aluminium sheets screwed onto an interior scaffold. https://www.instagram.com/p/CH_iU8JgeIr/ https://www.instagram.com/p/CH_iU8JgeIr/