This product is totally unstable. The thread ended up distorted, the media is offered for 15kg but my projector 6kg was enough to tip the spontaneous support (we can not tighten obviously) giving a skewed image of 15 ° on the wall despite my attempts recovery support. DO NOT BUY THIS PURPOSE UNLESS YOU WANT TO SUSPEND A VIDEO PROJECTOR SMALL AND LESS THAN 3KG. Or offer it to someone you do not like.
Ah ... Special mention for the Korean written notice illiterate, the explanatory drawings are so thoroughly missed even with a magnifying glass we can not even guess at the shape of the object being described. Hat.
In fact, when you open the package, you say "houlaaaa, I hope the stuff is more robust, more solid and serious than its installation guide". Ben made: no.