Mmf File drawer key rack File Drawer Key Rack, 40-Key Capacity Keep your keys safely organized—and take up no extra space doing so. These sturdy, molded plastic, 40-key racks come with numbered key tags to help you increase organization and help prevent wasted time. The "Out Key" control tags and key control chart make sure you know who has your keys. Key rack simply clamps on back of standard office file drawers or desk drawers. Comes in a sand color.