Comfortable, easy to use, great staying power
I'll start off by saying I've never really done updos or used a hair pin before in my life, and I didn't watch any videos, so I don't think I'm using them right. Even with that in mind: I did a simple braid bun this morning (first attempt) and these pins kept it in place through a 9 hour workday, a run, and walking the dogs after work without any pieces falling out. Plus, they were so comfortable, I barely felt them. Definitely will buy again when I inevitably lose a few and would definitely recommend them!