{"title":"Expandable Envelopes","description":"\u003cp\u003eThe failure point on a flat envelope is the crease when it is over-filled, so anything holding a set that grows needs a gusset built in from the start. Board weight then decides whether it survives posting. String or stud closures hold a thick set where a self-seal flap will not reach. See \u003ca href=\"\/collections\/expanding-folders\"\u003eexpanding folders\u003c\/a\u003e, \u003ca href=\"\/collections\/document-wallets\"\u003edocument wallets\u003c\/a\u003e and \u003ca href=\"\/collections\/pocket-envelopes\"\u003epocket envelopes\u003c\/a\u003e.\u003c\/p\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/5419\/8784\/collections\/expandableenvelopes__14719.jpg?v=1791403752","url":"https:\/\/megaschoolsupplies.com.au\/collections\/expandable-envelopes.oembed","provider":"Mega School Supplies","version":"1.0","type":"link"}