The Blue Airmail Envelopes are perfect for sending letters and documents with style and efficiency. Made from durable 80 GSM paper, these envelopes feature the classic blue airmail design, evoking a sense of nostalgia and adventure. Each envelope measures 9" x 6" (225 x 115 mm), providing ample space for your correspondence. The pack contains 20 envelopes, ensuring you have an ample supply for your mailing needs. Whether sending personal letters or professional documents, these envelopes add a touch of sophistication to your communications.