Document Case Clipboard A4 Binder with Calculator Multifunctional File Box File Board Bifold Pen Holder Office Supplies Document Organizer File Case

Calculator and clipboard integrated! Increase work efficiency without the need for a separate calculator! A highly functional A4 size clipboard with a calculator function!

Easy to write. The board surface is hard and can be used as an underlay for stable writing. With a hanging hole on the back, you can hang your clipboard to save space.