Quality Park® Greeting Card Envelopes provide the perfect cover for your special occasion cards. The size fits standard half-fold or single-page cards and invitations. Your greeting card envelopes arrive flaps folded down to feed directly into your laser or inkjet printer. Keep on hand for custom card making, birthday cards, invitations, photos, announcements, RSVP card envelopes and many other social occasions. Redi-Strip™ Closure—Once envelopes are stuffed and ready to go, pull off the Redi-Strip® attachments for fast, easy closure. Seam Type: Side; Flap Type: Square; Trade Size: A-4; Security Tinted: No.