Description: Board Backed envelopes.? Peel and seal strip for easy sealing. Printed with “please do not bend” on the front of the envelope.? Envelope constructed from 115gsm paper and 950micron board.
Size (internal) : 352mm x 249mm (LARGE LETTER MAXIMUM)
Usage:??sending documents, photos,?artwork?and other items that must be kept flat within the Royal Mail Large Letter Format.
(1 Box = 125 envelopes)