Function: Punches holes in paper and inserts a plastic comb spine to bind the pages together.
Capacity: Can typically handle standard paper sizes like A4 and bind up to several hundred sheets, often up to 450 sheets depending on the model.
Operation: Features a manual lever for punching holes and a mechanism to open the plastic comb for insertion.
Versatility: Allows documents to lie flat or fold back on themselves for easy reading and copying.