Attaching a keychain to your keys or other belongings is a simple but essential task that can help you keep your items organized and easily accessible. A keychain is a small chain or ring that is used to hold keys together and can also be used to attach other items such as keychains, USB drives, or small tools.
Keychains have been used for centuries to keep keys organized and secure. The earliest keychains were made of leather or metal and were often attached to the belt or waistband. Today, keychains are made from a variety of materials, including metal, plastic, and fabric, and can be found in a wide range of styles and designs.