excellent quality arm support, very robust and really comfortable. It comes home in a simple box that contains: -the arm; -4 metal dowels with screws; -4 bolts; -4 washers; -4 rings; -8 small screws; 1 velcro strap; -the user manual also written in Italian. In short, I find everything I need to assemble the support. This is a wall mount for lights or cameras. The support quality is excellent, it is incredibly robust and reliable. It is made almost entirely of steel, it is heavy and resistant. It consists of a large rectangular plate that is fixed to the wall and an extendable tube. The assembly is simple, the plate is already drilled so just drill the holes in the wall and fix the support using the supplied dowels. Even the dowels are made of steel and therefore they can hold the support without any problem. The support is very comfortable because it is foldable, when not in use it can be left down and takes up very little space. When closed, its measurements are: -43 cm in length; -13 cm in width including the plate; -8 cm in depth. I can widen the arm and rotate left and right. But the very convenient thing is that I can extend it and it reaches up to 96 cm. The system for stretching it is as simple as it is practical, in fact there are butterfly knobs, just stretch the tube as much as needed and then tighten to keep it in place. Finally, at the end of the arm, I find a universal screw attachment that allows me to mount both lights and cameras for firm and professional shooting. Ultimately, I find it an extraordinary product, it's very comfortable, it's well done and it also has an excellent quality-price ratio so I recommend it without a doubt, I really like it.