In clothing and fashion design, a button is a small plastic or metal disc- or knob-shaped, typically round, object usually attached to an article of clothing in order to secure an opening, or for ornamentation. Functional buttons work by slipping the button through a fabric or thread loop, or by sliding the button through a reinforced slit called a buttonhole. Buttons may be manufactured from an extremely wide range of materials, including natural materials such as antler, bone, horn, ivory, sh… (More on Button)