Hair clips top part is made of durable plastic, bottom part is rust-resistant smooth metal, this makes it slide into hair easier and won't get caught on the teeth or pull your hair. Also good for sectioning precision area. Silicone band has a very important anti-slip rile, so that hair clips won’t fall off while using. High elasticity and premium metal spring is durable to use These duck billed clips are great for sectioning hair and maintaining hair in place well.