Flexzion Binding Machine Paper Comb Punch Book Report Scrapbook Binder Puncher Trimmer Cutter Laminator A4 A5 Size Manually with 21 Hole 250 Sheets Capacity For Office or Home Durable sturdy metal base. Long power-saving handel - push to bind and pull to punch Dye ruler for aligning document. Waste drawer for keeping paper scrap. Non-skid feet on the bottom Punches up to 12 sheets at a time with a minimum of effort. Open punching throat for punching large size document Side margin control for holding any size document well. Punch margin control for controling the punch margin depth Efficient machine allows user to punch & bind in continuous manner. Perfect for frequent binding needs or large office applications