JAM Paper A9 Invitation Envelopes - 5 3/4" x 8 3/4" - Ruby Red - 25/pack Color: Ruby Red Size: A9 (5.75 x 8.75 inches) Quantity: 25 per pack Our smooth finish envelopes are made from high quality paper and have a straight flap and gummed closure These versatile envelopes are perfect for birthday cards, invitations, RSVP's, personal mail, thank you cards, and more