Longer hair pins (2.5in and 3in)
Are designed for larger amounts of hair and holding longer hair; for example, putting shoulder-length hair up into an elegant chignon bun.
Shorter pins (2in and 1.5in)
Are designed for holding smaller amounts of hair; for example, sides of hair and bangs. Having a variety of sizes on hand can be helpful.
Remember, it’s important to weave the u-shaped hair pins in and out through the hair and then into the scalp hair for best hold. Do not push pins into the scalp hair straight upwards or they will slide out. Instead, push the pin across and slightly down for best