Superfine Ultrawhite A9 (5-3/4-x-8-3/4) Gold Foil Lined Envelopes 25-pk - 118 GSM (32/80lb Text) PaperPapers holds letter paper folded in half Large Invitation, Social and DIY Greeting Envelopes Ultrawhite (98 bright-white appearance) A9 Envelopes (5.75-x-8.75-inches) 146x222 Millimeters / perfect size for letter-size paper folded in half Square Flap - moisten to seal Envelopes made from quality papers. Virgin fiber, eggshell finish, 118 GSM (32/80lb Text) Lining placement: Lining is an accent and is placed inside envelope flap and throat, and stops midway, inside the envelope body.