A3/a4 Double Head Stapler, Desktop Stapler with Center Seam Binding Mode, 50 Sheet Binding Capacity, Edge Paper Entry Depth 3-20mm, Center Seam Depth 14-21.5cm, for School, 50ST (A4)

HKFGSHOP

【Dual Binding Modes】 Use the edge binding mode with an adjustable entry depth of 3-20mm for standard documents, or switch to the center seam binding mode with a 14-21.5cm depth for perfect A3/A4 saddle stitching. Easily handle reports, booklets, and everyday paperwork with precision. 【50-Sheet Capacity & Ergonomic Design】 Engineered with an upgraded lever mechanism, this heavy-duty stapler reduces hand fatigue by providing scientific leverage for smooth, effortless pressing. It reliably binds up to 50 sheets at once, making it a practical and time-saving solution for high-volume office, school, or home tasks without compromising on binding quality. 【Adjustable Spacing & Foldable Paper Support】 Customize your binding position with the movable inner core to suit different document needs. The foldable support tray extends to hold large A3 papers flat during center seam binding, ensuring neat and professional results, then folds away for compact desktop storage when not in use. 【All-Steel Replaceable Inner Core】 Built for long-term durability, this stapler features a premium all-steel independent core that resists jams and wear. If the core ever needs maintenance, it can be easily detached and replaced without buying a new stapler. 【One-Touch Pop-Up Needle Slot】The innovative one-press button instantly pops up the needle channel for quick, safe, and jam-free staple insertion. This user-friendly design prevents pinching and streamlines your workflow.