【Durable hair pins】 Spiral hair pins are made of durable alloy metal material, strong and sturdy, not easily deformed. It’s not easy to break and get deform after using for a long time. The color environmental protection paint spraying in one, not fading easily and more durable. , 【Non-scratch round tips】Each Spin Pins designed with small round tips. It protect you from scratching, and scalp for a safety use. Grip well on your hair, and hold tight all day.