An electric kettle has five main parts: a cylindrical plastic and metal container for holding water, a plastic handle, a flat circular metal base, an on/off switch on the handle, and an electrical cord connecting the base to an outlet. It boils water by heating the container which typically holds 1.5 liters of water and has a diameter of 6 inches and height of 10 inches while the base is 6 inches in diameter and 1 inch high. Kettles are often silver or white in color and have a spout at the top of the container for pouring and a lid and handle that are curved in shape.