Project filer pads keep all your project notes organized. The heavy plastic backing is formed into 1/3 cut tabs on the side of each pad. With 30 sheets per pad, each three-hole punched pad can be dedicated to one project and filed in a hanging file, a desktop organizer or a three-ring binder for easy retrieval. The 1.5mm plastic backing is rigid enough so you can write on the pad away from your desk. Filer pad contains 16 lb., legal-ruled paper.