JAM PAPER A8 Premium Invitation Envelopes - 5 1/2 x 8 1/8 - Smooth Black - 25/Pack Color: Smooth black Size: A8 (5.5 x 8.125 inches) Quantity: 25 per pack These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more Envelope Features: Straight flap gum closure, high quality Smooth paper finish