TruBind TB-S12 Coil-Binding Machine - With Electric Coil Inserter - Adjustable Hole-Punching and Paper-Size Settings ELECTRIC COIL INSERTER - Create professional-looking bound books at home or in the office quickly and easily. The TruBind Coil-Binding Machine electronically inserts plastic coils for faster binding. MARGIN ADJUSTMENTS - Bind your own books of any size or shape. The TruBind Coil-Binding Machine has side and depth margin adjustments, so you control where the holes are punched on paper of any size. CUSTOMIZABLE BINDING - The open-throat design means you can punch holes and insert binding in paper larger than letter size. ONE-YEAR MANUFACTURER WARRANTY - We stand by the quality of our office equipment. If you are not completely satisfied with your TruBind Coil-Binding Machine, just send it back for a complete refund.