The spout is the most important part of a faucet. It determines the style of the faucet. Some spouts are straight, while others are curved. It is also important to consider the spout and the handle. A handle can control water flow and temperature. Most kitchen faucets have two handles, but a single handle is part of the neck. The body is where the valve is and can be made of copper, bronze, zinc alloy, or stainless steel.