Box of 50 C3 Board Back Envelopes (324 x 457mm)

Box of 50 C3 Board Back Envelopes. Size: 324 x 457mm. Ideal for A3 Documents. Peel & Seal Boardback Envelopes. Can be used for documents, books, certificates, magazines. 120gsm Kraft Paper (1000Mic Grey Back Board). Printed Red Text "Please Do Not Bend".