Duotangs are paper folders made of harder cardstock paper with flat metal teeth. They are used to bind multiple sheets of paper by bending the metal teeth through the holes of the paper and folding them down to keep them in place. Some models have three teeth, and some have 6 (two on the top, middle and bottom). They can be different colours such as blue, green, red, yellow and black. They are often used as an organization tool for multiple pages of one subject, chiefly by elementary school students.
Duotangs were originally manufactured by the Duotang brand name, but the brand was bought on July 1, 2004 by Esselte.[1] All previous Duotang products were subsequently replaced by Oxford / Esselte products or otherwise discontinued.
References
- ^ "Duo-Tang Folders". D.C. Helms, Inc.. http://www.duo-tang-folders.com/. Retrieved on 2008-01-31.
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