These 12"x16" interoffice envelopes are built with sturdy 28 lb. paper stock, ensuring durability and reliability in containing documents. The punched holes on both sides allow for quick content verification without the need to open the envelope, streamlining office workflows. With three columns, these envelopes optimize space, allowing for clear and organized information in interdepartmental communication. The string-and-button closure provides both convenient access and secure sealing, maintaining document integrity during transit. The 12”x16” envelopes will fit many different document sizes for simple transfer between departments.