This is a small little shelf to sit ontop of a thin TV. The Size is variable you just need an M6 stainless Steel threaded Rod and 12 M6 Nuts.
Cut the Rod to the desired length and fix the two shelfbrackets to it via 8 M6 Nuts, then attach the Arms with 2 shorter Pieces of the threaded Rod or M6x30 Screws.
I cut some sandingpaper to the right size to use as a kind of washer between the arms and the brackets.
The Shelf can be placed ontop of you TV, the TV should at least have a Bezzel of 1cm width.