a6 blank invitation and card envelopes, square flap gummed, white, pack of 50, thick 70# paper, (6-1/2 x 4-3/4 inches) alliance business products a6 size envelopes | pack of 50 | 6.5" x 4.75" envelope | thick , 70lb text paper stock | booklet style square flap. | perfect for any invitation, greeting card, note card or 4" x 6" photo card.