Shutters are a type of window covering that can be used to control the amount of light and air that enters a room. The term 'shutter part' refers to the components that make up a shutter. The two most common shutter parts are slats and louvers. Slats are thin, horizontal pieces of wood or metal that are connected together to form a shutter. Louvers are angled pieces of wood or metal that are used to control the amount of air and light that enters a room. Both slats and louvers are essential components of shutters and are necessary for them to function properly.