ALL BOARD WHITE LETTER ENVELOPES C3 C4 C5 CARDBOARD CAPACITY
C4 - 324mm x 229mm. C5 - 223mm x 162mm. C3 - 457mm x 330mm. Simply pop the item/s inside and close with the secure peel-and-seal strip. You can label or write directly on the White Kraft finish with an easy tear-off opener.