S35 trio lighting truss 3 way junction apex down corner right hand S35TC33. This junction is normally required for one top corner of a square build, you will normally use two right hand (these corners) and two left hand corners, these junctions turn on the down leg.
This can be confusing, please call if you need to discuss if you wish. The junction will come with a set of fittings. Dimensions are 500x500x500mm.