4" x 6" envelopes for invitations - bright white a6 envelopes (4 3/4" x 6 1/2") - square booklet flap (100 envelopes) desktop publishing supplies, inc. desktop publishing supplies brand white a6 square flap envelopes are perfect to accompany 4" x 6" photos or cards and fit a6 greeting cards perfectly! these white a6 envelopes are made from a high quality bright white 28lb bond / 70lb text (105 gsm) paper stock and are inkjet and laser printer compatible. these white a6 envelopes measure 4 3/4" x 6 1/2" each and feature a booklet style square flap that is gummed for sealing. <br> <br> <b>100 envelopes per pack</b>