I needed something to hold my speedlights and diffuser umbrellas to my tripods, and I didn't like that most things had the flash so far off center from the diffuser umbrella. I had two different kinds of quick releases for two tripods. These mount directly to the quick release mechanism. The speedlights are strapped to the top, and there's a 9mm hole for the umbrellas directly beneath. I have two 12" straps that I use. zip ties or Velcro straps would work as well. There is a 3mm hole for a set screw. I just used whatever I had in a drawer.