If you've never pinned up your hair using one of these, get ready. It's very easy, it actually stays in place, and it's more streamlined than a mess of bobby pins. To use — gather your hair like you're putting it in a ponytail, then twirl it into a bun against the back of your head, twisting the hair tightly. Stick the pin sideways through the bun (east-west) and then do a sharp U-turn to bring it back underneath, securing the bun to your head. Voilà