Review (5/5): Great substitute for clips or bobby pins!
These are great since they don't leave kinks in your hair when you're putting it up but want to take it down later. I have long hair and if I twist the bun right I can hold it with just one spin pin for a loose/tussled look. Expensive, but totally worth it. They don't bend out of shape like bobby pins do, and they last a long time!