SOLO sheet safeguards (sheet protector). New international design. All four sides closed sheet protectors. Special top "tuck over " flap which firmly closes the open side & secures up to 20 documents inside. Innovative & wide top opening to simply & swiftly steer documents into pocket. Heavy duty pockets hold upto 30 sheets. Antistatic -not sticky. Ultra some sealing at all edges. Double reinforcement at 11- holes universal punch. Fits all kinds of filing mechanisms. Ideal for Brochure, Receipts, Maps & Charts , Reports , Certificates, Menus, Photograph, All documents. Lifetime use