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Our C5 White Board Backed Envelopes are the perfect size for posting A5 documents. These white board backed envelopes feature a strong back board with a tough paper front, so your items are protected but postage costs are kept down. We offer a choice of window or no window, and options printed with “Please Do Not Bend” to encourage careful handling in the post, and to help avoid any damage to your important items. These C5 envelopes feature a handy peel and seal strip for quick packing and also conform to the Royal Mail size regulations for sending letters.
