A leaflet is a small printed sheet that is usually folded and is intended for free distribution. It is often used to disseminate information or to promote a product or service. Leaflets are made from a single sheet of paper, sometimes folded, whereas pamphlets can also be made of several sheets. They are often distributed in the form of handouts or newspaper inserts. The terms "leaflet" and "pamphlet" are sometimes used interchangeably, but there are some differences. The main points of distinction are the number of sheets used to create them, the quality, and the purpose. A leaflet tends to be made from cheaper, lower-quality paper, while a pamphlet may use higher-quality stock. Leaflets are often used for advertising or general information about a business or organization. They can be handed out on the street, distributed door-to-door through the mail, posted on bulletin boards, put under windshield wipers of cars, given away at events or on the street, or affixed to telephone poles, walls, or other surfaces).