Review (5/5): How the heck did I ever live without these???
I have hip-length, very thick, straight, slippery hair. It eats plastic claw lips for lunch, snaps hair sticks, explodes hair ties, wiggles out of metal U-pins, and, for the short time it stays in place, gives me headaches.
But spin pins work. I use three and my hair does not move until I take them out. It took a while to find the combination of pins and bun placement that would last and not give me a headache, but it was worth it. And...they don't break!