<http://schema.org/description>
"340mm x 340mm Square White 350gsm Board Peel &amp; Seal Envelopes. All board envelopes made from 350gsm card, ideal for protecting items in the post such as calendars, photos, prints and brochures"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.allcolourenvelopes.co.uk/340-x-340-square-white-350gsm-board-peel-seal-pocket-envelopes.html>