PERFECT FOR ALL OCCASIONS: If youÕre looking for an envelope for baby shower invitations, wedding invitations, holiday cards, pregnancy announcements, RSVPs, thank-you cards, and more, our square envelope is an excellent option. These square flap envelopes are also perfect for direct mail, letters, postcards, and 6 1/4Ó x 6 1/4Ó photos so you can depend on them for all your special mailing needs. MOISTENABLE GLUE SEAL: You can even use a moistener to avoid licking the glue Ñ itÕs a huge time-saver! Simply moisten the strip of glue, press, and seal. It couldn't be easier! This type of adhesive is great for business applications, wedding announcements, and personal notes. PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, youÕre in luck! These envelopes are printer-friendly, so you can use your home laser or inkjet printer to address them. They are printable on both digital and offset commercial printers. No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models.