Premium A4 Kraft Envelopes: Made from recyclable brown kraft paper, these card envelopes measure 4.25 x 6.25 inches, 120 GSM, with enough space for 4 x 6 cards, photos, invitations or RSVP, 100 packs in each box; The plain brown envelopes with a matte texture are elegant and classic, reflecting good taste; The envelope paper is made of FSC-certified paper Envelopes Self Seal: The 4x6 envelopes for invitations have a self-seal strip that allows for effortless sealing without the need to lick or moisten by peeling off the strip; The adhesion of the flap is strong, secure and lasting, keeping contents from falling out during transit Printer Compatible: The photo envelopes 4x6 are compatible with laser, inkjet and copier printers, ideal for customization with personalized messages or designs, without the concern of smudging or paper jams; Suitable for both personal and commercial applications Trusted Quality and Privacy: The brown postcard envelopes are sturdy and thick enough to absorb pens, inks, colored pencils and watercolor paints without any ink or paint soaking through to the other side; The rsvp envelopes are also designed to reduce transparency, ensuring the privacy of the contents Versatile Application: Stuff the A4 blank envelopes with letters, cards, photos, CDs, postcards or anything else; Perfect for a wide range of applications such as wedding invitations, baby showers, graduations, birthday, and various parties or business uses These premium A4 brown kraft envelopes are made from recyclable brown kraft paper and measure 4.25 x 6.25 inches, providing enough space for 4 x 6 cards, photos, invitations, or RSVPs. Each box contains 100 envelopes.The plain brown envelopes feature a matte texture that is elegant and classic, reflecting good taste. The 4 by 6 envelopes have a self-seal strip, allowing for effortless sealing without the need to lick or moisten. Simply peel off the strip to achieve a strong, secure, and lasting seal, ensuring that the contents remain securely inside during transit. These 4 x 6 envelopes for cards are compatible with laser, inkjet, and copier printers, making them suitable for customization with personalized messages or designs. The a4 envelopes self seal are sturdy and thick enough to absorb pens, inks, coloured pencils, and watercolour paints without any ink or paint soaking through to the other side. The photo envelopes 4x6 are also designed to reduce transparency, ensuring the privacy of the contents. These A4 blank envelopes can be used for a wide range of purposes, including wedding invitations, baby showers, graduations, birthdays, and various parties or business uses.