A spray can is a container that holds a liquid under pressure, allowing it to be released in a fine mist or spray. It typically consists of a metal or plastic canister, a nozzle, and a propellant. Spray cans are commonly used for various applications, including painting, cleaning, and personal care products like deodorants. When the nozzle is pressed, the propellant forces the liquid out, creating a spray. This method of application provides an even coat and is often preferred for its convenience and efficiency. Spray cans are widely used in industries such as automotive, construction, and art.