Editing Ring binder (section)

{{short description|Large folder that contains file folders or hole-punched papers}}

[[File:lever arch file.jpg|thumb|A ring binder, folded]]

'''Ring binders''' ('''loose leaf binders''', '''looseleaf binders''', or sometimes called '''files''' in [[United Kingdom|Britain]]) are large folders that contain [[file folder]]s or [[hole punch]]ed papers (called [[Loose leaf|loose leaves]]). 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 {{convert|0.5|,|1|,|1.5|, and |2|in|mm}}, though other sizes are also available. The rings may be secured by lever arch<ref>{{cite web |title=Lever Arch Mechanisms :: RING ALLIANCE |url=http://www.ring-alliance.com/02_en_leverarchmechanisms.php |archive-url=https://web.archive.org/web/20160304080003/http://www.ring-alliance.com/02_en_leverarchmechanisms.php |archive-date=2016-03-04 |access-date=2015-11-04 |website=www.ring-alliance.com}}</ref> mechanisms or other securing systems. The binders themselves are typically made from plastic with metal rings. Early designs were patented during the late 19th century.