What is the Characteristics of an safety pins?

Safety pins are typically characterized by their simple design, consisting of a metal pin with a coiled spring and a clasp that secures the pointed end. They are often made from stainless steel or brass, providing durability and resistance to rust. The pointed end is designed to pierce fabric while the clasp prevents accidental opening, making them practical for fastening materials together or serving as temporary closures. Their versatility allows them to be used in various applications, from clothing and crafts to first aid.