100 pack a4 colored envelopes 4 1/4 x 6 1/4 inch for birthday, wedding invitations, photos (7 colors) best paper greetings these assorted 4.25 x 6.25-inch envelopes in 7 colors are sure to delight the recipient. our a4 colored envelopes are perfect for holiday cards, greeting cards, postcards, photos, and "open when" letters. to seal, simply tear off the tape and press the square flap closed. create custom invitation envelopes with calligraphy, hand lettering, stencils, stamps, paint, glitter, stickers, markers, or ribbon. you will receive 100 photo envelopes in this bulk set.