Snap Clip (Hair Accessories)

Two toothed metal halves, joined by a small hinge and spring, snap shut flat against the head to make a snap clip. Once closed, the whole clip lies nearly flat rather than standing up or out, which is what separates it from bulkier clips built to be seen from across a room. It holds by simple pressure between the two toothed halves, gripping whatever thin section of hair sits between them.

Size stays small on purpose, usually just an inch or two long, enough for a section of fringe, a piece framing the face, or one strand pinned back at the temple. Because the spring and the teeth are both small, the amount of hair it can hold is genuinely limited. Loading a snap clip with more than a thin section asks the spring to do a job it was never built for, and it will pop open under that load within minutes.

A barrette works on a similar over center spring, the mechanism that clicks shut and stays shut until pressed open again, but it carries a larger decorative plate meant to be the visible point of interest. A snap clip skips that plate and stays plain and low, built to disappear rather than stand out. A claw clip holds an entire twisted section through sprung jaws that bite deep into a mass of hair, far more than the light pressure a snap clip applies to one thin piece.

Fringe, face framing pieces and any small section you want pinned flat and out of the way suit a snap clip well, and they are cheap enough to buy in a set and scatter several across the head at once. Thick sections defeat the mechanism, since the spring cannot close far enough to grip much volume. Anyone wanting a clip that reads as jewelry rather than function should look at a barrette instead, since a snap clip is built to be useful first.

Open and close a snap clip a few times in the store, checking that the spring returns crisply rather than sticking partway, since a hinge pin that already feels loose on the shelf will only get worse. Wipe the teeth clean of product buildup occasionally, since a slick clip rides out of thin hair even faster than a clean one does, and store a set in a small pouch or box rather than a loose bag, where thin metal teeth bend against everything else they touch.