Only 2 stars because although the arm is of good quality and relatively light, I was very disappointed that my tripod DynaSun (thus of the same brand as this arm) and a diameter of about 20 mm (so consistent with what is recommended in the description of this article) can not hold a charge to carry the arms DynaSun + a reflector 107 cm from another brand ... I do not know where the problem, arm or tripod? In all cases, these items are from the same manufacturer and should provide combine without problem. I do not think my round reflector 107 cm is the cause of my disappointment since its manufacture is standard complement ...
Furthermore, and after 3 purchases products DynaSun brand, I found that no manual and that no information is provided with the products of the brand DynaSun. Besides the fact that it does not meet the normally imposed by the EU quality standards, the presence of these manuals / information might have enabled me to learn more about the weight limits that support this arm and my tripod . But apart from the summary descriptions of items on Amazon, there is no info!
So why two stars anyway? Because if you do not use it on a tripod, this arm and bracket will do.