Create a systematic, efficient filing system for your office with these Staples letter-size 3-inch box-bottom hanging file folders. Organize big projects by color with these standard green hanging file folders. The flat bottom lets you customize file storage and prevent stored documents from riding up, while the expandable design offers greater storage capacity when filing stacks of paperwork. These letter-sized Staples letter-size 3-inch box-bottom hanging file folders feature durable paper construction to protect your files.