If you have thick or heavy hair, you've probably bent, snapped, or lost more hairpins than you'd like to admit. It's not you. Most hairpins simply aren't built to handle real weight, and thick hair puts a lot of it on a small piece of metal.
A large hair pin for thick hair needs two things most standard pins don't have: length, to actually reach the anchor point at the base of a full bun, and gauge, meaning the thickness of the metal itself, to hold tension without bending under real weight. A thin, flimsy pin might get through a bun once or twice before it loses its shape entirely.
This is exactly why the Power Pin exists. It's built on an upcycled American stainless steel core, which gives it the strength to hold thick or long hair session after session without bending, snapping, or losing its tension the way a lot of cheaper metal pins do over time. Steel doesn't fatigue the same way as the softer alloys most mass-market pins are made from.
For very thick or heavy hair, technique matters as much as the pin. Two pins placed at opposing angles through the base of the bun, rather than one pin trying to do all the work, is often the more reliable approach. Think of them creating an X, each one reinforcing the other. A single pin, even a well-made one, has a limit to how much weight it can anchor alone.
I'll also say this plainly: a pin that bends after a handful of uses isn't actually saving you money, even if it costs less upfront. You end up replacing it every few months. A pin built to hold its shape through years of daily use, even under thick hair's real demands, is the better investment even at a higher price point.
If you've been going through pins faster than you'd like, thick hair usually just needs a stronger tool. The Power Pin is built specifically to hold real weight without bending.