1.Durable material: made of nickel plated metal with smooth surface, resistant to rust,durable for long term application.2.Easy to use: helpful for pin curls and holding hair curls in place,the smooth surface won't irritate your scalp and goes in easy.3.Use with a hair roller: remove these clips gently after your hair is dry, select a lock of hair and wrap it around roller from ends to roots, gently comb your curls to achieve a glamorous look.4.More uses:Use in the salon or at home,or you can add your favorite hair accessories to these silver metal single prong hair clips, to create more beautiful hair pins for daily wearing.5.Package include: 100 pack single prong clips,each size 1.77 inch/ 4.5 cm long. Enough to meet your needs of big quantity.