100 Pack Envelopes-A6 Envelopes (6.3" x 4.3")-Black Size: A6 (6.3 X 4.3 inches) Quantity: 100 Black Envelopes per Pack Features: Laser and Inkjet Compatible. Printable on off-set and digital printing presses and some home printers. Envelope Features: Square Gummed Flap Closure, High Quality Smooth Paper Finish, Made with 30% recycled materials Application: These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more.