VEVOR Coil Spiral Binding Machine, Manual Book Maker with Electric Binding, 46-Holes Binding 500 Sheets Punch Binder, with 100pcs 5/16'' Coil Binding Spines, for Letter Size, A4, A5 Guide-Ons After docking

After docking

great surface smoothness

The backrest can be adjusted and locked at four different angles to suit any activity

and secure the boards using screws

we have used durable material

VEVOR Coil Spiral Binding Machine, Manual Book Maker with Electric Binding, 46-Holes Binding 500 Sheets Punch Binder, with 100pcs 5/16'' Coil Binding Spines, for Letter Size, A4, A5 Guide-Ons After dockingProduct Features Binding Efficiency and Neatness Our binding machine handles bulk projects effortlessly, punching up to 46 holes, 20 sheets, and binding 500 sheets at once. Ideal for schools, offices, and businesses, it ensures professionally finished documents. Compatible with Various Sizes Featuring 46 detachable pins, this upgraded coil spiral binding machine allows you to insert large and non standard page sizes. It's compatible with Letter size