5.What You Get: Set of 20 pcs, enough for a long time use and various hairstyles. You can also share same pins with your female friends. 4.Material: Metal. The spiral hair pin is made of lightweight and durable metal,can be used for a long lasting time. 3.The Advantage Of Hairpins: Spiral hair pins are easy to use,no need to 'open up old-fashion hair pins' with your mouth anymore. Spin pins keeps teeth 100% safe as no teeth is needed for its use. For all hair types, great for medium to long hair. 2.Non-scratch Round Tips pin pins designed with tiny round ball tips will not scratch your hair and scalp for a safety use. And hold your hair style tight all day. The non-scratch rounded tips will keep your head safe. 1.?How To Use ust hold hair in place, place pin where needed and screw into place. To remove, turn in the opposite direction. No scratches, no pulls, no breakage.