The hair grip is another very simple object used daily by millions of people. In fact it functions so effectively we no longer stop to appreciate the design elements.
I have identified some of them below. Like the Keyring this is also made of just one piece of metal and the simplicity means that there is very little to break.
The ends of the grip are protected with a thin layer of silicon that does not stick to the hair but allows the grip to guide through without sharp ends scratching the head of the person using it. One side of the grip is wavy to pinch hair between the metal grip effectively and give it the necessary strength to hold in place.
The metal used is strong enough to retain the intended shape but allows the user to bend it open further if they wish, depending on the grip they want for their hairstyle.