Ring binders are large folders that contain file folders or hole punched papers. These binders come in various sizes and can accommodate an array of paper sizes. These are held in the binder by circular or D-shaped retainers, onto which the contents are threaded. In North America, the rings themselves come in a variety of sizes, including 0.5, 1, 1.5, and 2 inches, though other sizes are also available. The rings may be secured by lever arch mechanisms or other securing systems, or may be spring-loaded. The binders themselves are typically made from plastic with metal rings. Early designs were patented during the early 1890s to the early 1900s.

A file folder is a kind of folder that holds papers together for organization and protection. File folders usually consist of a sheet of heavy paper stock or other thin, but stiff, material which is folded in half, and are used to keep paper documents. They are often used in conjunction with a filing cabinet for storage. File folders can easily be purchased at office supplies stores.