I bought this to use with my soft braces as I forgot to get one earlier. I really like them, not the heavy metal struts weighing down my rescue bag. This is a small enough device that doesn't take up much space but easily fits over my braces. Machining is fine, there is no cleaning inside the hole due to anodizing. Using 2000 grit sandpaper, it took just a second to quickly spot a very small burr. Beyond that, I see it will work great. I hope I never have to find out!