1.57x4 inches/4 x 10cm magnetic label holder, including 20 magnetic labels, 20 transparent plastic protective films and 40 thickened paper cards, the number of label magnets is enough for your work and daily use. Make this label holder flexible, weatherproof, curl resistant, easy to apply, reusable and not easy to get dirty; "C" channel allows the card to slide nicely into the magnetic channel; protective film is to prevent printed or written text on the card To fade, a protective film after installing on a filing cabinet or metal shelf. The magnets of the magnetic card holder are strong and stable, suitable for industrial and commercial use. Great for organizing warehouse shelves, freezer doors, toolbox drawers, office, school, and supermarket product names, filing cabinet descriptions, items on metal walls, part numbers in sample rooms, electrical panels, and more, and is an excellent tool for marking any metal best solution. Keep your work area organized and avoid communication