This is an OEM heavy-duty pressboard file folder, designed for letter-size documents. It features a straight-cut top tab and includes a 1" prong fastener on the inside back cover. With a 1-1/2" expansion and a cloth gusset bottom, this folder is made from 25 point light green pressboard and contains 30% post-consumer material. Each box contains 100 folders, making it a reliable choice for organizing important documents.