The pictures and the description didn't show it well enough to understand exactly how it works. This is a famous roulette wheel. The pin is too small for the axis, there is no wing holder and slider for the balance. It's a three-person job, it's the same as a roulette wheel. I borrowed an ASC that I wanted but couldn't find. That's what they sold, they just left out information that would have helped them make a different decision. I think I could spend more time looking for videos how to use it. It is well made and the finish is nice. A tape measure is easier to store and does the same thing.