100 Pack 9X12 Inch Self Seal Photo Document Mailers Stay Flat White Cardboard En
Material: Made of 450gsm paperboard. Thickness: 1.5mm. Material：paperboard. Unit Count 100.0 Count. Style Flat. Color White.
Material: Made of 450gsm paperboard. Thickness: 1.5mm. Material：paperboard. Unit Count 100.0 Count. Style Flat. Color White.