Steel safety pins are essential and versatile fastening tools commonly used to secure fabric, clothing, and other materials together. Here's some information about steel safety pins: 1. Functionality: Steel safety pins are designed with a simple spring mechanism that allows them to open and close. This mechanism makes them easy to attach and remove from various materials. They are often used to fasten clothing items like skirts, pants, shirts, and dresses, or to secure fabric layers in sewing and crafting projects. 2. Material: Steel safety pins are typically made from stainless steel, which provides durability, rust resistance, and strength.