JAM PAPER 4Bar A1 Premium Invitation Envelopes - 3 5/8 x 5 1/8 - Burgundy - 25/Pack Color: Burgundy Size: 4bar A1 (3.63 x 5.13 inches) Quantity: 25 envelopes per pack Envelope Features: Straight flap gum closure, high quality Smooth paper finish These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more