A regular zipper is a fastening device commonly used in clothing, bags, and other items. It consists of two strips of fabric with interlocking metal or plastic teeth and a slider that moves up and down to open or close the zipper. When the slider is pulled, the teeth mesh together, securing the two sides. Zippers come in various sizes and styles, including metal zippers and plastic zippers. They are designed for durability and ease of use, making them a popular choice for both everyday items and specialized applications, such as outdoor gear and luggage.