90 Pack Airmail Stationery Paper Set, Vintage Letter Writing Paper and Envelopes Set for Invitations, thank you Letters, or Casual Letters(6.9 x 9.25 In)

["[90 Piece Airmail Stationery Set] Includes 60 sheets of airmail letter paper and 30 matching envelopes (90 pieces total). Ideal stationary paper set for invitations, thank you letters, pen pal letters, casual letters, and everyday correspondence.","[Standard USPS Envelope Size] Envelope size: 7.28 x 3.94 inches, designed to meet USPS standard letter size requirements for smooth domestic mailing within the United States. The included letter paper measures 6.9 x 9.25 inches, perfectly sized to fit the envelopes after folding, making mailing convenient and hassle-free.","[Self Seal Envelopes – Moisture Activated Adhesive] Envelopes feature a traditional lick to seal flap with built-in adhesive. No glue sticks, tape, or stickers needed. Convenient for bulk mailing and daily letter writing.","[Quality Paper Materials] Durable 120gsm kraft paper envelopes provide structure and protection. 100gsm cream writing paper offers a smooth surface compatible with ballpoint pens, gel pens, and most fountain pens.","[Vintage Airmail Design Details] Classic red and blue airmail border design combined with airplane postmark elements and subtle world map texture. Perfect vintage stationery for international mail, pen pal stationery, retro letters, and themed invitations."]