I didn't realize how much I needed this until after I found the perfect use for it. I work in a call center; we have the option of a headphone / microphone or a traditional handset for our phone system. I was loving it as a phone holder with the included spring clamp mount. I would frequently speak with family via FaceTime, so it was nice to not have to put the phone down when doing something else and having whoever I'm talking to stare at the ceiling. Then I found the best use for me. I use it to hold the telephone handset from sliding off the desk. This has become a priceless piece of gear for me. The size allows me to freely move it to wherever it needs to be. I don't have to worry about it sliding off, or the cord dangling below and getting caught on the chair. I may eventually try to 3D print a proper cup for the handset to rest in but for now I just lay it over the clamp and the bar.

I think this should hold up for quite some time, it's all metal construction including the knobs to tighten and loosen the clamp / pivots. there's a thin layer of some sort of foam around the bars to dampen any accidental dings or noises from contact with anything. It works great for what its intended for, as well as my newfound use for it.