The Rubbermaid Magnetic Wall File is an ideal choice for your office-supply organizational needs. It's crafted from super-resistant, clear plastic material for long-lasting durability. This wall file organizer easily attaches to any flat metal surface, making it ideal for use on filing cabinets. Use this practical item to hold envelopes and also letter or A-4 sized documents and folders. Set up this hanging file holder using magnets for a total weight capacity that is less than 1 lb. If you need a studier hold, then use screws instead of magnets for heavier loads weighing more than 1 lb.