The 9 Slot Rolled File Filing Box from Advanced Organizing Systems is the ideal choice to store your oversized files and blueprints. This filing box features a labeling system that allows you to select the right file without any confusion. This unit is made from corrugated cardboard, which makes it durable and lightweight. This filing box sports a white color that looks attractive and blends with any style of an office setting. It has identification labels on the interior and exterior of this filing box, which enables you to select the right file without any confusion. It has a reinforced bottom that gives this filing box a sturdy and protective base. It also has side handles that allow you to carry the box to any location.