Cup holders are small, often circular, compartments designed to hold drinks securely in place. They are commonly found in vehicles, such as cars and trucks, allowing passengers to enjoy beverages without worrying about spills. Cup holders can also be found in furniture like recliners and theaters, making it convenient to have a drink nearby while relaxing or watching a movie. These handy features come in various sizes to accommodate different types of containers, from coffee cups to water bottles. Some cup holders even have additional features, like cooling or heating elements, to keep drinks at the perfect temperature.