The product is a large lot of Reflecmedia LiteRings Chroma Extra DJ equipment, as shown in the photos. made of black Chromakey material. The model is RM1125 and the style is plain. It is all from the brand Reflecmedia and manufactured in China. Perfect for use in lighting and studio setups, as well as with cameras and photo equipment. can’t answer all questions. I don’t know much about the equipment. I did test and it all works. what you see is what you get.