21 1/2 x 27 3/4" Kraft Flat Mailers $342.12 21 1/2 x 27 3/4" Kraft Flat MailersStrong chipboard mailers protect photos and documents during shipping.Manufactured from .036 kraft chipboard. Light-weight to save on postage. No additional stiffeners needed. Tab lock closure.Item SpecificationsItem... Add to Cart