NEW Spiral Coil Binding Machine & Electric Inserter With 100 pcs of FREE Black Spiral Wire Coil Built In Electric Coil Inserter Binding Capacity: 250 Sheets - Punching Capacity: 20 Sheets Facilities: 21 International Standard Hole Distance Paper Size Up to 8 1/2" x 11" Adjustable Punch Margin. Side Margin Control: Adjust alignment easily