Use Safco’s Hanging Clamps to hold large documents in your vertical filing system. The aluminum clamps have black wing knobs that grip your blueprints or drawings. Each clamp holds up to 100 sheets or 20 pounds. Use with Safco’s Vertical Filing Cabinet, Mobile Vertical File or Mobile Plan Center. Clear plastic label holders are included. Must be ordered in multiples of six. These clamps are best suited for 18-inch-long sheets.