OEM tri-fold file folder NSN4840001 designed for letter-size documents. This folder features compartments that allow you to open and review all three stacks at once. It includes one 1-1/2" fastener on the side sections and a 2-1/2" prong fastener in the center. Made from 17 point red stock and contains 30% post-consumer material, this product comes in a box of 10.