Smooth, white C6 size all board envelopes measuring 162 x 114mm designed to safely send paper, card and slim documents. Made from premium 500 micron, 350gsm, fully coated chipboard making them extremely robust and easy to use. The pre-folded flap features a peel and seal style closure for fast and efficient packing, and a surface that can be custom printed and suitable for self-adhesive labels. These C6 all board envelopes are also fully plastic-free, recyclable, biodegradable, and made from sustainable materials - ideal for sending your documents the eco way.