After searching for a Samsung Odyssey wrist band clasp, I quickly found turrboenvy's design for a Windows Mixed Reality wrist band clasp. However, I noticed that the corners were quite sharp and that the design is a bit too thin (which could mean that it breaks quicker after a few uses). That's why I wanted to make a few improvements to the models and make the corners and edges a bit more round and a make the walls a bit thicker.
It might be a little bit harder to get the lever into the holes of the housing now, but in the end it's worth the extra strength. I used 25% infill for these, I think anything higher will make it too hard to snap them into place. With 25% infill they are still plenty strong.
It seems like the teeth on the lever show up in gray in Cura. I printed them without the teeth, and only noticed after I printed them out. They still work great without the teeth and have a firm grip. Something you could try to print them with teeth, is to print them vertically.