Installed 2" capacity fasteners hold papers securely inside folder to prevent valuable papers from falling out or getting lost. Fasteners are also a great way to subdivide related documents within the folder. Heavy-duty folders are made from tear- and moisture-resistant polypropylene. Scored for 3/4" expansion to accommodate growing files. File Folder Type: Top Tab; Size: Letter; Folder Material: Polypropylene; Color(s): Manila.