This is a perfect model if you have an iPhone and like recording time-lapse or videos from overhead. Which is something I do somewhat frequently to record my process on a project or to take product shots. Beam arms for iPhones are kinda hard to find and expensive. This one cost about 4 dollars including filament, 3/4″ inch dowel and 1/4″ nuts. Super easy and cheap. And it works like a charm!